30966894 has 128 divisors (see below), whose sum is σ = 85708800. Its totient is φ = 8087040.

The previous prime is 30966889. The next prime is 30966907. The reversal of 30966894 is 49866903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 391947 + ... + 392025.

It is an arithmetic number, because the mean of its divisors is an integer number (669600).

Almost surely, 2^30966894 is an apocalyptic number.

30966894 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30966894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42854400).

30966894 is an abundant number, since it is smaller than the sum of its proper divisors (54741906).

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

30966894 is a wasteful number, since it uses less digits than its factorization.

30966894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 30966894 is about 5564.7905620967. The cubic root of 30966894 is about 314.0261990121.

The spelling of 30966894 in words is "thirty million, nine hundred sixty-six thousand, eight hundred ninety-four".