30140379 has 12 divisors (see below), whose sum is σ = 43730856. Its totient is φ = 20003712.

The previous prime is 30140347. The next prime is 30140381. The reversal of 30140379 is 97304103.

It is not a de Polignac number, because 30140379 - 2⁵ = 30140347 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5334 + ... + 9419.

It is an arithmetic number, because the mean of its divisors is an integer number (3644238).

Almost surely, 2^30140379 is an apocalyptic number.

30140379 is a deficient number, since it is larger than the sum of its proper divisors (13590477).

30140379 is a wasteful number, since it uses less digits than its factorization.

30140379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14986 (or 14983 counting only the distinct ones).

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

The square root of 30140379 is about 5490.0254097773. The cubic root of 30140379 is about 311.2071523734.

The spelling of 30140379 in words is "thirty million, one hundred forty thousand, three hundred seventy-nine".