30423642 has 32 divisors (see below), whose sum is σ = 65349504. Its totient is φ = 9408000.

The previous prime is 30423619. The next prime is 30423683. The reversal of 30423642 is 24632403.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5142 + ... + 9342.

It is an arithmetic number, because the mean of its divisors is an integer number (2042172).

Almost surely, 2^30423642 is an apocalyptic number.

30423642 is an abundant number, since it is smaller than the sum of its proper divisors (34925862).

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

30423642 is a wasteful number, since it uses less digits than its factorization.

30423642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4294.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 30423642 is about 5515.7630478475. The cubic root of 30423642 is about 312.1790351472.

The spelling of 30423642 in words is "thirty million, four hundred twenty-three thousand, six hundred forty-two".