30540756 has 24 divisors (see below), whose sum is σ = 71354304. Its totient is φ = 10167040.

The previous prime is 30540749. The next prime is 30540817. The reversal of 30540756 is 65704503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13636 + ... + 15716.

It is an arithmetic number, because the mean of its divisors is an integer number (2973096).

Almost surely, 2^30540756 is an apocalyptic number.

It is an amenable number.

30540756 is an abundant number, since it is smaller than the sum of its proper divisors (40813548).

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

30540756 is a wasteful number, since it uses less digits than its factorization.

30540756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3311 (or 3309 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 30540756 is about 5526.3691516221. The cubic root of 30540756 is about 312.5790937930.

The spelling of 30540756 in words is "thirty million, five hundred forty thousand, seven hundred fifty-six".