30622540 has 24 divisors (see below), whose sum is σ = 69254640. Its totient is φ = 11306688.

The previous prime is 30622523. The next prime is 30622561. The reversal of 30622540 is 4522603.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58630 + ... + 59149.

It is an arithmetic number, because the mean of its divisors is an integer number (2885610).

Almost surely, 2^30622540 is an apocalyptic number.

It is an amenable number.

30622540 is an abundant number, since it is smaller than the sum of its proper divisors (38632100).

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

30622540 is a wasteful number, since it uses less digits than its factorization.

30622540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117801 (or 117799 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 30622540 is about 5533.7636378870. The cubic root of 30622540 is about 312.8578599064.

The spelling of 30622540 in words is "thirty million, six hundred twenty-two thousand, five hundred forty".