30654990 has 32 divisors (see below), whose sum is σ = 81747360. Its totient is φ = 8174592.

The previous prime is 30654977. The next prime is 30654997. The reversal of 30654990 is 9945603.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30654997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56499 + ... + 57038.

It is an arithmetic number, because the mean of its divisors is an integer number (2554605).

Almost surely, 2^30654990 is an apocalyptic number.

30654990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30654990 is an abundant number, since it is smaller than the sum of its proper divisors (51092370).

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

30654990 is a wasteful number, since it uses less digits than its factorization.

30654990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113553 (or 113547 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 30654990 is about 5536.6948624608. The cubic root of 30654990 is about 312.9683303162.

The spelling of 30654990 in words is "thirty million, six hundred fifty-four thousand, nine hundred ninety".