30941406 has 32 divisors (see below), whose sum is σ = 69438720. Its totient is φ = 10211832.

The previous prime is 30941399. The next prime is 30941423. The reversal of 30941406 is 60414903.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 30941406.

It is a congruent number.

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, 2781 + ... + 8343.

It is an arithmetic number, because the mean of its divisors is an integer number (2169960).

Almost surely, 2^30941406 is an apocalyptic number.

It is a pronic number, being equal to 5562×5563.

It is a practical number, because each smaller number is the sum of distinct divisors of 30941406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34719360).

30941406 is an abundant number, since it is smaller than the sum of its proper divisors (38497314).

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

30941406 is a wasteful number, since it uses less digits than its factorization.

30941406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5677 (or 5671 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 30941406 is about 5562.4999775281. The cubic root of 30941406 is about 313.9400199172.

The spelling of 30941406 in words is "thirty million, nine hundred forty-one thousand, four hundred six".