45428390 has 48 divisors (see below), whose sum is σ = 96353712. Its totient is φ = 15374016.

The previous prime is 45428377. The next prime is 45428401. The reversal of 45428390 is 9382454.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 45428390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40112 + ... + 41228.

It is an arithmetic number, because the mean of its divisors is an integer number (2007369).

Almost surely, 2^45428390 is an apocalyptic number.

45428390 is an abundant number, since it is smaller than the sum of its proper divisors (50925322).

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

45428390 is a wasteful number, since it uses less digits than its factorization.

45428390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 45428390 is about 6740.0586050865. The cubic root of 45428390 is about 356.8144620932.

The spelling of 45428390 in words is "forty-five million, four hundred twenty-eight thousand, three hundred ninety".