30324780 has 60 divisors (see below), whose sum is σ = 95135040. Its totient is φ = 8086176.

The previous prime is 30324769. The next prime is 30324799. The reversal of 30324780 is 8742303.

It is a tau number, because it is divible by the number of its divisors (60).

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

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 7740 + ... + 10979.

It is an arithmetic number, because the mean of its divisors is an integer number (1585584).

Almost surely, 2^30324780 is an apocalyptic number.

30324780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30324780 is an abundant number, since it is smaller than the sum of its proper divisors (64810260).

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

30324780 is a wasteful number, since it uses less digits than its factorization.

30324780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18740 (or 18729 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 30324780 is about 5506.7939856145. The cubic root of 30324780 is about 311.8405250091.

The spelling of 30324780 in words is "thirty million, three hundred twenty-four thousand, seven hundred eighty".