30129516 has 48 divisors (see below), whose sum is σ = 82230400. Its totient is φ = 9513936.

The previous prime is 30129499. The next prime is 30129523. The reversal of 30129516 is 61592103.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 30129516.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5290 + ... + 9393.

Almost surely, 2^30129516 is an apocalyptic number.

30129516 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

30129516 is an abundant number, since it is smaller than the sum of its proper divisors (52100884).

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

30129516 is a wasteful number, since it uses less digits than its factorization.

30129516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14715 (or 14707 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 30129516 is about 5489.0359809351. The cubic root of 30129516 is about 311.1697601260.

The spelling of 30129516 in words is "thirty million, one hundred twenty-nine thousand, five hundred sixteen".