104992290 has 96 divisors (see below), whose sum is σ = 309516480. Its totient is φ = 24478848.

The previous prime is 104992249. The next prime is 104992291. The reversal of 104992290 is 92299401.

It is a super-2 number, since 2×104992290² = 22046761918888200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (104992291) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19869 + ... + 24591.

It is an arithmetic number, because the mean of its divisors is an integer number (3224130).

Almost surely, 2^104992290 is an apocalyptic number.

104992290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 104992290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154758240).

104992290 is an abundant number, since it is smaller than the sum of its proper divisors (204524190).

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

104992290 is a wasteful number, since it uses less digits than its factorization.

104992290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4768 (or 4765 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 104992290 is about 10246.5745495751. The cubic root of 104992290 is about 471.7578506314.

It can be divided in two parts, 1049 and 92290, that added together give a palindrome (93339).

The spelling of 104992290 in words is "one hundred four million, nine hundred ninety-two thousand, two hundred ninety".