30856946 has 8 divisors (see below), whose sum is σ = 46735104. Its totient is φ = 15278580.

The previous prime is 30856939. The next prime is 30856967. The reversal of 30856946 is 64965803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×30856946² = 1904302232893832, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74690 + ... + 75101.

It is an arithmetic number, because the mean of its divisors is an integer number (5841888).

Almost surely, 2^30856946 is an apocalyptic number.

30856946 is a deficient number, since it is larger than the sum of its proper divisors (15878158).

30856946 is a wasteful number, since it uses less digits than its factorization.

30856946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149896.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 30856946 is about 5554.9028794390. The cubic root of 30856946 is about 313.6541081430.

The spelling of 30856946 in words is "thirty million, eight hundred fifty-six thousand, nine hundred forty-six".