30930620 has 24 divisors (see below), whose sum is σ = 74233824. Its totient is φ = 10604736.

The previous prime is 30930619. The next prime is 30930629. The reversal of 30930620 is 2603903.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30930629) 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, 110327 + ... + 110606.

It is an arithmetic number, because the mean of its divisors is an integer number (3093076).

Almost surely, 2^30930620 is an apocalyptic number.

It is an amenable number.

30930620 is an abundant number, since it is smaller than the sum of its proper divisors (43303204).

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

30930620 is a wasteful number, since it uses less digits than its factorization.

30930620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220949 (or 220947 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 30930620 is about 5561.5303649265. The cubic root of 30930620 is about 313.9035364362.

The spelling of 30930620 in words is "thirty million, nine hundred thirty thousand, six hundred twenty".