231740402 has 8 divisors (see below), whose sum is σ = 349103196. Its totient is φ = 115372672.

The previous prime is 231740393. The next prime is 231740449. The reversal of 231740402 is 204047132.

231740402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 224670121 + 7070281 = 14989^2 + 2659^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×231740402² = 107407227838243208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248183 + ... + 249114.

Almost surely, 2^231740402 is an apocalyptic number.

231740402 is a deficient number, since it is larger than the sum of its proper divisors (117362794).

231740402 is a wasteful number, since it uses less digits than its factorization.

231740402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497532.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 231740402 is about 15223.0221046939. The cubic root of 231740402 is about 614.2340935942.

Adding to 231740402 its reverse (204047132), we get a palindrome (435787534).

The spelling of 231740402 in words is "two hundred thirty-one million, seven hundred forty thousand, four hundred two".