104990040 has 64 divisors (see below), whose sum is σ = 349970400. Its totient is φ = 27997056.

The previous prime is 104990023. The next prime is 104990051. The reversal of 104990040 is 40099401.

It is a super-2 number, since 2×104990040² = 22045816998403200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 104989986 and 104990013.

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, 47527 + ... + 49686.

Almost surely, 2^104990040 is an apocalyptic number.

104990040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104990040 is an abundant number, since it is smaller than the sum of its proper divisors (244980360).

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

104990040 is a wasteful number, since it uses less digits than its factorization.

104990040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97233 (or 97223 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 104990040 is about 10246.4647561976. The cubic root of 104990040 is about 471.7544806609.

The spelling of 104990040 in words is "one hundred four million, nine hundred ninety thousand, forty".