30940442 has 16 divisors (see below), whose sum is σ = 52921512. Its totient is φ = 13440000.

The previous prime is 30940439. The next prime is 30940463. The reversal of 30940442 is 24404903.

It can be written as a sum of positive squares in 4 ways, for example, as 29278921 + 1661521 = 5411^2 + 1289^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 34559 + ... + 35442.

Almost surely, 2^30940442 is an apocalyptic number.

30940442 is a deficient number, since it is larger than the sum of its proper divisors (21981070).

30940442 is a wasteful number, since it uses less digits than its factorization.

30940442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70033.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 30940442 is about 5562.4133251674. The cubic root of 30940442 is about 313.9367595469.

The spelling of 30940442 in words is "thirty million, nine hundred forty thousand, four hundred forty-two".