30623742 has 24 divisors (see below), whose sum is σ = 66498744. Its totient is φ = 10185264.

The previous prime is 30623731. The next prime is 30623779. The reversal of 30623742 is 24732603.

30623742 is a `hidden beast` number, since 30 + 623 + 7 + 4 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7788 + ... + 11040.

It is an arithmetic number, because the mean of its divisors is an integer number (2770781).

Almost surely, 2^30623742 is an apocalyptic number.

30623742 is an abundant number, since it is smaller than the sum of its proper divisors (35875002).

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

30623742 is a wasteful number, since it uses less digits than its factorization.

30623742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3784 (or 3781 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 30623742 is about 5533.8722428332. The cubic root of 30623742 is about 312.8619532989.

The spelling of 30623742 in words is "thirty million, six hundred twenty-three thousand, seven hundred forty-two".