30444690 has 32 divisors (see below), whose sum is σ = 73224000. Its totient is φ = 8101184.

The previous prime is 30444679. The next prime is 30444703. The reversal of 30444690 is 9644403.

It is a super-2 number, since 2×30444690² = 1853758298392200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 19561 + ... + 21059.

It is an arithmetic number, because the mean of its divisors is an integer number (2288250).

Almost surely, 2^30444690 is an apocalyptic number.

30444690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30444690 is an abundant number, since it is smaller than the sum of its proper divisors (42779310).

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

30444690 is a wasteful number, since it uses less digits than its factorization.

30444690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 30444690 is about 5517.6707042012. The cubic root of 30444690 is about 312.2510101991.

The spelling of 30444690 in words is "thirty million, four hundred forty-four thousand, six hundred ninety".