1618992960 has 336 divisors, whose sum is σ = 5903585856. Its totient is φ = 374439936.

The previous prime is 1618992959. The next prime is 1618992971. The reversal of 1618992960 is 692998161.

It is a super-2 number, since 2×1618992960² = 5242276409059123200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2757787 + ... + 2758373.

It is an arithmetic number, because the mean of its divisors is an integer number (17570196).

Almost surely, 2^1618992960 is an apocalyptic number.

1618992960 is a gapful number since it is divisible by the number (10) 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 1618992960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2951792928).

1618992960 is an abundant number, since it is smaller than the sum of its proper divisors (4284592896).

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

1618992960 is a wasteful number, since it uses less digits than its factorization.

1618992960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 51.

The square root of 1618992960 is about 40236.7115952584. The cubic root of 1618992960 is about 1174.2168821345.

The spelling of 1618992960 in words is "one billion, six hundred eighteen million, nine hundred ninety-two thousand, nine hundred sixty".