104995990 has 16 divisors (see below), whose sum is σ = 206174160. Its totient is φ = 38180320.

The previous prime is 104995939. The next prime is 104995991. The reversal of 104995990 is 99599401.

It is a super-2 number, since 2×104995990² = 22048315832160200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 104995990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104995991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477145 + ... + 477364.

It is an arithmetic number, because the mean of its divisors is an integer number (12885885).

Almost surely, 2^104995990 is an apocalyptic number.

104995990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

104995990 is a deficient number, since it is larger than the sum of its proper divisors (101178170).

104995990 is a wasteful number, since it uses less digits than its factorization.

104995990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954527.

The product of its (nonzero) digits is 131220, while the sum is 46.

The square root of 104995990 is about 10246.7550961268. The cubic root of 104995990 is about 471.7633922559.

The spelling of 104995990 in words is "one hundred four million, nine hundred ninety-five thousand, nine hundred ninety".