104891220 has 96 divisors (see below), whose sum is σ = 372960000. Its totient is φ = 23974272.

The previous prime is 104891159. The next prime is 104891249. The reversal of 104891220 is 22198401.

It is a super-2 number, since 2×104891220² = 22004336066176800, which contains 22 as substring.

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

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, 10095 + ... + 17654.

It is an arithmetic number, because the mean of its divisors is an integer number (3885000).

Almost surely, 2^104891220 is an apocalyptic number.

104891220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

104891220 is an abundant number, since it is smaller than the sum of its proper divisors (268068780).

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

104891220 is a wasteful number, since it uses less digits than its factorization.

104891220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27774 (or 27766 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 104891220 is about 10241.6414699988. The cubic root of 104891220 is about 471.6064240396.

It can be divided in two parts, 104891 and 220, that added together give a triangular number (105111 = T₄₅₈).

The spelling of 104891220 in words is "one hundred four million, eight hundred ninety-one thousand, two hundred twenty".