45232690 has 8 divisors (see below), whose sum is σ = 81418860. Its totient is φ = 18093072.

The previous prime is 45232687. The next prime is 45232729. The reversal of 45232690 is 9623254.

It can be written as a sum of positive squares in 2 ways, for example, as 36978561 + 8254129 = 6081^2 + 2873^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×45232690² = 4091992489272200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2261625 + ... + 2261644.

Almost surely, 2^45232690 is an apocalyptic number.

45232690 is a deficient number, since it is larger than the sum of its proper divisors (36186170).

45232690 is a wasteful number, since it uses less digits than its factorization.

45232690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4523276.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 45232690 is about 6725.5252582977. The cubic root of 45232690 is about 356.3013534260.

The spelling of 45232690 in words is "forty-five million, two hundred thirty-two thousand, six hundred ninety".