30757542 has 32 divisors (see below), whose sum is σ = 65829120. Its totient is φ = 9551520.

The previous prime is 30757541. The next prime is 30757547. The reversal of 30757542 is 24575703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30757541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4743 + ... + 9165.

It is an arithmetic number, because the mean of its divisors is an integer number (2057160).

Almost surely, 2^30757542 is an apocalyptic number.

30757542 is an abundant number, since it is smaller than the sum of its proper divisors (35071578).

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

30757542 is a wasteful number, since it uses less digits than its factorization.

30757542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4508.

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 30757542 is about 5545.9482507503. The cubic root of 30757542 is about 313.3169391855.

The spelling of 30757542 in words is "thirty million, seven hundred fifty-seven thousand, five hundred forty-two".