30940490 has 16 divisors (see below), whose sum is σ = 63649152. Its totient is φ = 10608144.

The previous prime is 30940463. The next prime is 30940537. The reversal of 30940490 is 9404903.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220934 + ... + 221073.

It is an arithmetic number, because the mean of its divisors is an integer number (3978072).

Almost surely, 2^30940490 is an apocalyptic number.

30940490 is an abundant number, since it is smaller than the sum of its proper divisors (32708662).

30940490 is a wasteful number, since it uses less digits than its factorization.

30940490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442021.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 30940490 is about 5562.4176398397. The cubic root of 30940490 is about 313.9369218906.

The spelling of 30940490 in words is "thirty million, nine hundred forty thousand, four hundred ninety".