30268992 has 112 divisors (see below), whose sum is σ = 88018112. Its totient is φ = 9123840.

The previous prime is 30268981. The next prime is 30269023. The reversal of 30268992 is 29986203.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 30268992.

It is an unprimeable number.

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, 167142 + ... + 167322.

It is an arithmetic number, because the mean of its divisors is an integer number (785876).

Almost surely, 2^30268992 is an apocalyptic number.

30268992 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 30268992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44009056).

30268992 is an abundant number, since it is smaller than the sum of its proper divisors (57749120).

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

30268992 is a wasteful number, since it uses less digits than its factorization.

30268992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 30268992 is about 5501.7262745433. The cubic root of 30268992 is about 311.6491783236.

The spelling of 30268992 in words is "thirty million, two hundred sixty-eight thousand, nine hundred ninety-two".