30538340 has 24 divisors (see below), whose sum is σ = 73292352. Its totient is φ = 10470240.

The previous prime is 30538337. The next prime is 30538381. The reversal of 30538340 is 4383503.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108926 + ... + 109205.

It is an arithmetic number, because the mean of its divisors is an integer number (3053848).

Almost surely, 2^30538340 is an apocalyptic number.

It is an amenable number.

30538340 is an abundant number, since it is smaller than the sum of its proper divisors (42754012).

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

30538340 is a wasteful number, since it uses less digits than its factorization.

30538340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218147 (or 218145 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 30538340 is about 5526.1505589334. The cubic root of 30538340 is about 312.5708511352.

The spelling of 30538340 in words is "thirty million, five hundred thirty-eight thousand, three hundred forty".