30401938 has 32 divisors (see below), whose sum is σ = 56361600. Its totient is φ = 12006144.

The previous prime is 30401911. The next prime is 30401963. The reversal of 30401938 is 83910403.

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, 8298 + ... + 11386.

It is an arithmetic number, because the mean of its divisors is an integer number (1761300).

Almost surely, 2^30401938 is an apocalyptic number.

30401938 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

30401938 is a deficient number, since it is larger than the sum of its proper divisors (25959662).

30401938 is a wasteful number, since it uses less digits than its factorization.

30401938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 30401938 is about 5513.7952446568. The cubic root of 30401938 is about 312.1047820863.

The spelling of 30401938 in words is "thirty million, four hundred one thousand, nine hundred thirty-eight".