104990520 has 64 divisors (see below), whose sum is σ = 322312320. Its totient is φ = 27345024.

The previous prime is 104990513. The next prime is 104990533. The reversal of 104990520 is 25099401.

It is a happy number.

It is a super-2 number, since 2×104990520² = 22046018579740800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5014 + ... + 15333.

It is an arithmetic number, because the mean of its divisors is an integer number (5036130).

Almost surely, 2^104990520 is an apocalyptic number.

104990520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104990520 is an abundant number, since it is smaller than the sum of its proper divisors (217321800).

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

104990520 is a wasteful number, since it uses less digits than its factorization.

104990520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20404 (or 20400 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 104990520 is about 10246.4881788835. The cubic root of 104990520 is about 471.7551995920.

The spelling of 104990520 in words is "one hundred four million, nine hundred ninety thousand, five hundred twenty".