45621428 has 24 divisors (see below), whose sum is σ = 81134592. Its totient is φ = 22443264.

The previous prime is 45621427. The next prime is 45621449. The reversal of 45621428 is 82412654.

It is a junction number, because it is equal to n+sod(n) for n = 45621394 and 45621403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45621427) 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, 118925 + ... + 119307.

It is an arithmetic number, because the mean of its divisors is an integer number (3380608).

Almost surely, 2^45621428 is an apocalyptic number.

It is an amenable number.

45621428 is a deficient number, since it is larger than the sum of its proper divisors (35513164).

45621428 is a wasteful number, since it uses less digits than its factorization.

45621428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 789 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The square root of 45621428 is about 6754.3636265750. The cubic root of 45621428 is about 357.3191495663.

The spelling of 45621428 in words is "forty-five million, six hundred twenty-one thousand, four hundred twenty-eight".