45071290 has 36 divisors (see below), whose sum is σ = 89638542. Its totient is φ = 16304640.

The previous prime is 45071281. The next prime is 45071309. The reversal of 45071290 is 9217054.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 24830289 + 20241001 = 4983^2 + 4499^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 233434 + ... + 233626.

Almost surely, 2^45071290 is an apocalyptic number.

45071290 is a deficient number, since it is larger than the sum of its proper divisors (44567252).

45071290 is a wasteful number, since it uses less digits than its factorization.

45071290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 45071290 is about 6713.5154725375. The cubic root of 45071290 is about 355.8770616617.

The spelling of 45071290 in words is "forty-five million, seventy-one thousand, two hundred ninety".