30256394 has 16 divisors (see below), whose sum is σ = 52059456. Its totient is φ = 12919200.

The previous prime is 30256381. The next prime is 30256397. The reversal of 30256394 is 49365203.

It is a self number, because there is not a number n which added to its sum of digits gives 30256394.

It is not an unprimeable number, because it can be changed into a prime (30256397) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 89 + ... + 7779.

It is an arithmetic number, because the mean of its divisors is an integer number (3253716).

Almost surely, 2^30256394 is an apocalyptic number.

30256394 is a deficient number, since it is larger than the sum of its proper divisors (21803062).

30256394 is a wasteful number, since it uses less digits than its factorization.

30256394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7981.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 30256394 is about 5500.5812420143. The cubic root of 30256394 is about 311.6059360382.

The spelling of 30256394 in words is "thirty million, two hundred fifty-six thousand, three hundred ninety-four".