109432290 has 32 divisors (see below), whose sum is σ = 286514496. Its totient is φ = 26528960.

The previous prime is 109432259. The next prime is 109432303. The reversal of 109432290 is 92234901.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165477 + ... + 166136.

It is an arithmetic number, because the mean of its divisors is an integer number (8953578).

Almost surely, 2^109432290 is an apocalyptic number.

109432290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

109432290 is an abundant number, since it is smaller than the sum of its proper divisors (177082206).

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

109432290 is a wasteful number, since it uses less digits than its factorization.

109432290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331634.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 109432290 is about 10460.9889589847. The cubic root of 109432290 is about 478.3162796539.

The spelling of 109432290 in words is "one hundred nine million, four hundred thirty-two thousand, two hundred ninety".