45420494 has 16 divisors (see below), whose sum is σ = 77977728. Its totient is φ = 19437432.

The previous prime is 45420491. The next prime is 45420499. The reversal of 45420494 is 49402454.

It is a self number, because there is not a number n which added to its sum of digits gives 45420494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45420491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9617 + ... + 13539.

It is an arithmetic number, because the mean of its divisors is an integer number (4873608).

Almost surely, 2^45420494 is an apocalyptic number.

45420494 is a deficient number, since it is larger than the sum of its proper divisors (32557234).

45420494 is a wasteful number, since it uses less digits than its factorization.

45420494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4759.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 45420494 is about 6739.4728280482. The cubic root of 45420494 is about 356.7937880151.

The spelling of 45420494 in words is "forty-five million, four hundred twenty thousand, four hundred ninety-four".