30440489 has 16 divisors (see below), whose sum is σ = 34418880. Its totient is φ = 26749440.

The previous prime is 30440483. The next prime is 30440513. The reversal of 30440489 is 98404403.

It is a cyclic number.

It is not a de Polignac number, because 30440489 - 2²⁰ = 29391913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30440483) 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, 22934 + ... + 24224.

It is an arithmetic number, because the mean of its divisors is an integer number (2151180).

Almost surely, 2^30440489 is an apocalyptic number.

It is an amenable number.

30440489 is a deficient number, since it is larger than the sum of its proper divisors (3978391).

30440489 is a wasteful number, since it uses less digits than its factorization.

30440489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1400.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 30440489 is about 5517.2900050659. The cubic root of 30440489 is about 312.2366472474.

The spelling of 30440489 in words is "thirty million, four hundred forty thousand, four hundred eighty-nine".