104491290 has 32 divisors (see below), whose sum is σ = 256614336. Its totient is φ = 27216000.

The previous prime is 104491271. The next prime is 104491307. The reversal of 104491290 is 92194401.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39211 + ... + 41790.

It is an arithmetic number, because the mean of its divisors is an integer number (8019198).

Almost surely, 2^104491290 is an apocalyptic number.

104491290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

104491290 is an abundant number, since it is smaller than the sum of its proper divisors (152123046).

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

104491290 is a wasteful number, since it uses less digits than its factorization.

104491290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81054.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 104491290 is about 10222.0981212274. The cubic root of 104491290 is about 471.0062791884.

The spelling of 104491290 in words is "one hundred four million, four hundred ninety-one thousand, two hundred ninety".