104186390 has 64 divisors (see below), whose sum is σ = 235146240. Its totient is φ = 32288640.

The previous prime is 104186363. The next prime is 104186429. The reversal of 104186390 is 93681401.

It is a happy number.

It is a super-2 number, since 2×104186390² = 21709607722464200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206879 + ... + 207381.

It is an arithmetic number, because the mean of its divisors is an integer number (3674160).

Almost surely, 2^104186390 is an apocalyptic number.

104186390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

104186390 is an abundant number, since it is smaller than the sum of its proper divisors (130959850).

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

104186390 is a wasteful number, since it uses less digits than its factorization.

104186390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 104186390 is about 10207.1734579167. The cubic root of 104186390 is about 470.5477091541.

The spelling of 104186390 in words is "one hundred four million, one hundred eighty-six thousand, three hundred ninety".