72355628 has 12 divisors (see below), whose sum is σ = 126692832. Its totient is φ = 36157680.

The previous prime is 72355597. The next prime is 72355637. The reversal of 72355628 is 82655327.

It is a junction number, because it is equal to n+sod(n) for n = 72355591 and 72355600.

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, 5501 + ... + 13227.

It is an arithmetic number, because the mean of its divisors is an integer number (10557736).

Almost surely, 2^72355628 is an apocalyptic number.

It is an amenable number.

72355628 is a deficient number, since it is larger than the sum of its proper divisors (54337204).

72355628 is a wasteful number, since it uses less digits than its factorization.

72355628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10072 (or 10070 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 72355628 is about 8506.2111424535. The cubic root of 72355628 is about 416.7005807773.

The spelling of 72355628 in words is "seventy-two million, three hundred fifty-five thousand, six hundred twenty-eight".