30319740 has 72 divisors (see below), whose sum is σ = 100337328. Its totient is φ = 7349760.

The previous prime is 30319733. The next prime is 30319753. The reversal of 30319740 is 4791303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5677 + ... + 9636.

It is an arithmetic number, because the mean of its divisors is an integer number (1393574).

Almost surely, 2^30319740 is an apocalyptic number.

30319740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30319740 is an abundant number, since it is smaller than the sum of its proper divisors (70017588).

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

30319740 is a wasteful number, since it uses less digits than its factorization.

30319740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15339 (or 15334 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 30319740 is about 5506.3363500607. The cubic root of 30319740 is about 311.8232480129.

The spelling of 30319740 in words is "thirty million, three hundred nineteen thousand, seven hundred forty".