30012792 has 32 divisors (see below), whose sum is σ = 78295680. Its totient is φ = 9569120.

The previous prime is 30012791. The next prime is 30012797. The reversal of 30012792 is 29721003.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30012791) 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, 26634 + ... + 27737.

It is an arithmetic number, because the mean of its divisors is an integer number (2446740).

Almost surely, 2^30012792 is an apocalyptic number.

It is an amenable number.

30012792 is an abundant number, since it is smaller than the sum of its proper divisors (48282888).

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

30012792 is a wasteful number, since it uses less digits than its factorization.

30012792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54403 (or 54399 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 30012792 is about 5478.3931950892. The cubic root of 30012792 is about 310.7674084510.

Adding to 30012792 its reverse (29721003), we get a palindrome (59733795).

The spelling of 30012792 in words is "thirty million, twelve thousand, seven hundred ninety-two".