30491426 has 12 divisors (see below), whose sum is σ = 53204598. Its totient is φ = 13067712.

The previous prime is 30491411. The next prime is 30491453. The reversal of 30491426 is 62419403.

It can be written as a sum of positive squares in only one way, i.e., 27050401 + 3441025 = 5201^2 + 1855^2 .

It is a nialpdrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 155471 + ... + 155666.

Almost surely, 2^30491426 is an apocalyptic number.

30491426 is a deficient number, since it is larger than the sum of its proper divisors (22713172).

30491426 is a wasteful number, since it uses less digits than its factorization.

30491426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311153 (or 311146 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 30491426 is about 5521.9042005453. The cubic root of 30491426 is about 312.4107085690.

The spelling of 30491426 in words is "thirty million, four hundred ninety-one thousand, four hundred twenty-six".