45390474 has 12 divisors (see below), whose sum is σ = 98346066. Its totient is φ = 15130152.

The previous prime is 45390473. The next prime is 45390491. The reversal of 45390474 is 47409354.

It can be written as a sum of positive squares in only one way, i.e., 35105625 + 10284849 = 5925^2 + 3207^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (45390473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1260829 + ... + 1260864.

Almost surely, 2^45390474 is an apocalyptic number.

45390474 is an abundant number, since it is smaller than the sum of its proper divisors (52955592).

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

45390474 is a wasteful number, since it uses less digits than its factorization.

45390474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521701 (or 2521698 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 45390474 is about 6737.2452827547. The cubic root of 45390474 is about 356.7151648417.

The spelling of 45390474 in words is "forty-five million, three hundred ninety thousand, four hundred seventy-four".