231293748 has 24 divisors (see below), whose sum is σ = 616783552. Its totient is φ = 66083904.

The previous prime is 231293729. The next prime is 231293767. The reversal of 231293748 is 847392132.

It is an interprime number because it is at equal distance from previous prime (231293729) and next prime (231293767).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1376665 + ... + 1376832.

Almost surely, 2^231293748 is an apocalyptic number.

231293748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

231293748 is an abundant number, since it is smaller than the sum of its proper divisors (385489804).

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

231293748 is a wasteful number, since it uses less digits than its factorization.

231293748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753511 (or 2753509 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 231293748 is about 15208.3446831008. The cubic root of 231293748 is about 613.8392170265.

The spelling of 231293748 in words is "two hundred thirty-one million, two hundred ninety-three thousand, seven hundred forty-eight".