45209428 has 12 divisors (see below), whose sum is σ = 86308992. Its totient is φ = 20549720.

The previous prime is 45209413. The next prime is 45209453. The reversal of 45209428 is 82490254.

It is a junction number, because it is equal to n+sod(n) for n = 45209393 and 45209402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513700 + ... + 513787.

It is an arithmetic number, because the mean of its divisors is an integer number (7192416).

Almost surely, 2^45209428 is an apocalyptic number.

It is an amenable number.

45209428 is a deficient number, since it is larger than the sum of its proper divisors (41099564).

45209428 is a wasteful number, since it uses less digits than its factorization.

45209428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027502 (or 1027500 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 45209428 is about 6723.7956542417. The cubic root of 45209428 is about 356.2402641025.

The spelling of 45209428 in words is "forty-five million, two hundred nine thousand, four hundred twenty-eight".