30642430 has 64 divisors (see below), whose sum is σ = 68640768. Its totient is φ = 9590400.

The previous prime is 30642419. The next prime is 30642431. The reversal of 30642430 is 3424603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30642431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137299 + ... + 137521.

It is an arithmetic number, because the mean of its divisors is an integer number (1072512).

Almost surely, 2^30642430 is an apocalyptic number.

30642430 is an abundant number, since it is smaller than the sum of its proper divisors (37998338).

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

30642430 is a wasteful number, since it uses less digits than its factorization.

30642430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 30642430 is about 5535.5604955596. The cubic root of 30642430 is about 312.9255812216.

The spelling of 30642430 in words is "thirty million, six hundred forty-two thousand, four hundred thirty".