30440630 has 32 divisors (see below), whose sum is σ = 60272640. Its totient is φ = 10977120.

The previous prime is 30440629. The next prime is 30440639. The reversal of 30440630 is 3604403.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30440639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12881 + ... + 15059.

It is an arithmetic number, because the mean of its divisors is an integer number (1883520).

Almost surely, 2^30440630 is an apocalyptic number.

30440630 is a deficient number, since it is larger than the sum of its proper divisors (29832010).

30440630 is a wasteful number, since it uses less digits than its factorization.

30440630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 30440630 is about 5517.3027830635. The cubic root of 30440630 is about 312.2371293389.

The spelling of 30440630 in words is "thirty million, four hundred forty thousand, six hundred thirty".