1616260392 has 160 divisors (see below), whose sum is σ = 4753267200. Its totient is φ = 512438400.

The previous prime is 1616260391. The next prime is 1616260409. The reversal of 1616260392 is 2930626161.

It is a happy number.

1616260392 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 260 + 392 = 666.

It is a super-2 number, since 2×1616260392² = 5224595309495987328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616260391) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1224709 + ... + 1226027.

It is an arithmetic number, because the mean of its divisors is an integer number (29707920).

Almost surely, 2^1616260392 is an apocalyptic number.

1616260392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1616260392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2376633600).

1616260392 is an abundant number, since it is smaller than the sum of its proper divisors (3137006808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1616260392 is a wasteful number, since it uses less digits than its factorization.

1616260392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429 (or 1416 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 1616260392 is about 40202.7411005767. The cubic root of 1616260392 is about 1173.5558880380. Note that the first 3 decimals are identical.

The spelling of 1616260392 in words is "one billion, six hundred sixteen million, two hundred sixty thousand, three hundred ninety-two".