231402450 has 48 divisors (see below), whose sum is σ = 574829280. Its totient is φ = 61605120.

The previous prime is 231402427. The next prime is 231402467. The reversal of 231402450 is 54204132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145761 + ... + 147339.

It is an arithmetic number, because the mean of its divisors is an integer number (11975610).

Almost surely, 2^231402450 is an apocalyptic number.

231402450 is an abundant number, since it is smaller than the sum of its proper divisors (343426830).

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

231402450 is a wasteful number, since it uses less digits than its factorization.

231402450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571 (or 2566 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 231402450 is about 15211.9180250224. The cubic root of 231402450 is about 613.9353647474.

Adding to 231402450 its reverse (54204132), we get a palindrome (285606582).

The spelling of 231402450 in words is "two hundred thirty-one million, four hundred two thousand, four hundred fifty".