30499992 has 48 divisors (see below), whose sum is σ = 84371040. Its totient is φ = 9949248.

The previous prime is 30499969. The next prime is 30499993. The reversal of 30499992 is 29999403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30499993) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1123 + ... + 7890.

It is an arithmetic number, because the mean of its divisors is an integer number (1757730).

Almost surely, 2^30499992 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 30499992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42185520).

30499992 is an abundant number, since it is smaller than the sum of its proper divisors (53871048).

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

30499992 is a wasteful number, since it uses less digits than its factorization.

30499992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9072 (or 9065 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 30499992 is about 5522.6797843076. The cubic root of 30499992 is about 312.4399611592.

It can be divided in two parts, 3049 and 9992, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 30499992 in words is "thirty million, four hundred ninety-nine thousand, nine hundred ninety-two".