45439190 has 16 divisors (see below), whose sum is σ = 81872640. Its totient is φ = 18157440.

The previous prime is 45439183. The next prime is 45439213. The reversal of 45439190 is 9193454.

It is a super-2 number, since 2×45439190² = 4129439975712200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45439190.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13166 + ... + 16254.

It is an arithmetic number, because the mean of its divisors is an integer number (5117040).

Almost surely, 2^45439190 is an apocalyptic number.

45439190 is a deficient number, since it is larger than the sum of its proper divisors (36433450).

45439190 is a wasteful number, since it uses less digits than its factorization.

45439190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4567.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 45439190 is about 6740.8597374519. The cubic root of 45439190 is about 356.8427358287.

The spelling of 45439190 in words is "forty-five million, four hundred thirty-nine thousand, one hundred ninety".