231424738 has 4 divisors (see below), whose sum is σ = 347137110. Its totient is φ = 115712368.

The previous prime is 231424729. The next prime is 231424747. The reversal of 231424738 is 837424132.

231424738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (231424729) and next prime (231424747).

It can be written as a sum of positive squares in only one way, i.e., 190246849 + 41177889 = 13793^2 + 6417^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57856183 + ... + 57856186.

Almost surely, 2^231424738 is an apocalyptic number.

231424738 is a deficient number, since it is larger than the sum of its proper divisors (115712372).

231424738 is a wasteful number, since it uses less digits than its factorization.

231424738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115712371.

The product of its digits is 32256, while the sum is 34.

The square root of 231424738 is about 15212.6505908734. The cubic root of 231424738 is about 613.9550749278.

The spelling of 231424738 in words is "two hundred thirty-one million, four hundred twenty-four thousand, seven hundred thirty-eight".