231420354 has 64 divisors (see below), whose sum is σ = 537477120. Its totient is φ = 65649920.

The previous prime is 231420253. The next prime is 231420401. The reversal of 231420354 is 453024132.

231420354 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 267727 + ... + 268589.

It is an arithmetic number, because the mean of its divisors is an integer number (8398080).

Almost surely, 2^231420354 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231420354, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268738560).

231420354 is an abundant number, since it is smaller than the sum of its proper divisors (306056766).

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

231420354 is a wasteful number, since it uses less digits than its factorization.

231420354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 231420354 is about 15212.5064995878. The cubic root of 231420354 is about 613.9511980792.

Adding to 231420354 its reverse (453024132), we get a palindrome (684444486).

The spelling of 231420354 in words is "two hundred thirty-one million, four hundred twenty thousand, three hundred fifty-four".