1601914860 has 288 divisors, whose sum is σ = 6244701120. Its totient is φ = 337913856.

The previous prime is 1601914829. The next prime is 1601914891. The reversal of 1601914860 is 684191061.

It is a happy number.

1601914860 is a `hidden beast` number, since 1 + 601 + 9 + 1 + 48 + 6 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1601914829) and next prime (1601914891).

It is a super-2 number, since 2×1601914860² = 5132262437377639200, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 341652 + ... + 346308.

It is an arithmetic number, because the mean of its divisors is an integer number (21682990).

Almost surely, 2^1601914860 is an apocalyptic number.

1601914860 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 1601914860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3122350560).

1601914860 is an abundant number, since it is smaller than the sum of its proper divisors (4642786260).

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

1601914860 is a wasteful number, since it uses less digits than its factorization.

1601914860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4702 (or 4687 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1601914860 is about 40023.9285927806. The cubic root of 1601914860 is about 1170.0734996561.

The spelling of 1601914860 in words is "one billion, six hundred one million, nine hundred fourteen thousand, eight hundred sixty".