30793392 has 160 divisors (see below), whose sum is σ = 107136000. Its totient is φ = 8266752.

The previous prime is 30793387. The next prime is 30793397. The reversal of 30793392 is 29339703.

It is an interprime number because it is at equal distance from previous prime (30793387) and next prime (30793397).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (30793397) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51109 + ... + 51707.

It is an arithmetic number, because the mean of its divisors is an integer number (669600).

Almost surely, 2^30793392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30793392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53568000).

30793392 is an abundant number, since it is smaller than the sum of its proper divisors (76342608).

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

30793392 is a wasteful number, since it uses less digits than its factorization.

30793392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 36.

The square root of 30793392 is about 5549.1793987940. The cubic root of 30793392 is about 313.4386226309.

It can be divided in two parts, 307933 and 92, that added together give a square (308025 = 555²).

The spelling of 30793392 in words is "thirty million, seven hundred ninety-three thousand, three hundred ninety-two".