30672768 has 64 divisors (see below), whose sum is σ = 93121920. Its totient is φ = 8762880.

The previous prime is 30672737. The next prime is 30672769. The reversal of 30672768 is 86727603.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30672769) 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, 3018 + ... + 8393.

It is an arithmetic number, because the mean of its divisors is an integer number (1455030).

Almost surely, 2^30672768 is an apocalyptic number.

It is an amenable number.

30672768 is an abundant number, since it is smaller than the sum of its proper divisors (62449152).

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

30672768 is a wasteful number, since it uses less digits than its factorization.

30672768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11435 (or 11423 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 30672768 is about 5538.3001002113. The cubic root of 30672768 is about 313.0288193887.

The spelling of 30672768 in words is "thirty million, six hundred seventy-two thousand, seven hundred sixty-eight".