30649242 has 32 divisors (see below), whose sum is σ = 69491520. Its totient is φ = 8933760.

The previous prime is 30649207. The next prime is 30649243. The reversal of 30649242 is 24294603.

It is not an unprimeable number, because it can be changed into a prime (30649243) 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, 8859 + ... + 11822.

It is an arithmetic number, because the mean of its divisors is an integer number (2171610).

Almost surely, 2^30649242 is an apocalyptic number.

30649242 is an abundant number, since it is smaller than the sum of its proper divisors (38842278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30649242 is a wasteful number, since it uses less digits than its factorization.

30649242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20718.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 30649242 is about 5536.1757558806. The cubic root of 30649242 is about 312.9487679283.

The spelling of 30649242 in words is "thirty million, six hundred forty-nine thousand, two hundred forty-two".