30252992 has 84 divisors (see below), whose sum is σ = 76270104. Its totient is φ = 11773440.

The previous prime is 30252991. The next prime is 30253019. The reversal of 30252992 is 29925203.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30252991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34058 + ... + 34934.

Almost surely, 2^30252992 is an apocalyptic number.

30252992 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30252992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38135052).

30252992 is an abundant number, since it is smaller than the sum of its proper divisors (46017112).

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

30252992 is a wasteful number, since it uses less digits than its factorization.

30252992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 30252992 is about 5500.2719932745. The cubic root of 30252992 is about 311.5942567094.

The spelling of 30252992 in words is "thirty million, two hundred fifty-two thousand, nine hundred ninety-two".