3696905520 has 240 divisors, whose sum is σ = 15479223552. Its totient is φ = 768176640.

The previous prime is 3696905503. The next prime is 3696905551. The reversal of 3696905520 is 255096963.

3696905520 is a `hidden beast` number, since 3 + 6 + 9 + 6 + 90 + 552 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×3696905520² = 27334220847612940800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22099 + ... + 88781.

Almost surely, 2^3696905520 is an apocalyptic number.

3696905520 is a gapful number since it is divisible by the number (30) 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 3696905520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7739611776).

3696905520 is an abundant number, since it is smaller than the sum of its proper divisors (11782318032).

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

3696905520 is a wasteful number, since it uses less digits than its factorization.

3696905520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66720 (or 66711 counting only the distinct ones).

The product of its (nonzero) digits is 437400, while the sum is 45.

The square root of 3696905520 is about 60802.1835134233. The cubic root of 3696905520 is about 1546.2490668890.

The spelling of 3696905520 in words is "three billion, six hundred ninety-six million, nine hundred five thousand, five hundred twenty".