45550428 has 48 divisors (see below), whose sum is σ = 132513024. Its totient is φ = 11831040.

The previous prime is 45550409. The next prime is 45550457. The reversal of 45550428 is 82405554.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23725 + ... + 25572.

It is an arithmetic number, because the mean of its divisors is an integer number (2760688).

Almost surely, 2^45550428 is an apocalyptic number.

It is an amenable number.

45550428 is an abundant number, since it is smaller than the sum of its proper divisors (86962596).

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

45550428 is a wasteful number, since it uses less digits than its factorization.

45550428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49322 (or 49320 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

The square root of 45550428 is about 6749.1057185378. The cubic root of 45550428 is about 357.1336896999.

The spelling of 45550428 in words is "forty-five million, five hundred fifty thousand, four hundred twenty-eight".