30543972 has 24 divisors (see below), whose sum is σ = 71390592. Its totient is φ = 10164000.

The previous prime is 30543967. The next prime is 30543979. The reversal of 30543972 is 27934503.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30543979) 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, 6597 + ... + 10227.

It is an arithmetic number, because the mean of its divisors is an integer number (2974608).

Almost surely, 2^30543972 is an apocalyptic number.

It is an amenable number.

30543972 is an abundant number, since it is smaller than the sum of its proper divisors (40846620).

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

30543972 is a wasteful number, since it uses less digits than its factorization.

30543972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4339 (or 4337 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 30543972 is about 5526.6601125816. The cubic root of 30543972 is about 312.5900651333.

The spelling of 30543972 in words is "thirty million, five hundred forty-three thousand, nine hundred seventy-two".