30542532 has 12 divisors (see below), whose sum is σ = 71265936. Its totient is φ = 10180840.

The previous prime is 30542531. The next prime is 30542569. The reversal of 30542532 is 23524503.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (30542531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1272594 + ... + 1272617.

It is an arithmetic number, because the mean of its divisors is an integer number (5938828).

Almost surely, 2^30542532 is an apocalyptic number.

It is an amenable number.

30542532 is an abundant number, since it is smaller than the sum of its proper divisors (40723404).

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

30542532 is a wasteful number, since it uses less digits than its factorization.

30542532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2545218 (or 2545216 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 30542532 is about 5526.5298334488. The cubic root of 30542532 is about 312.5851526881.

The spelling of 30542532 in words is "thirty million, five hundred forty-two thousand, five hundred thirty-two".