253431830 has 8 divisors (see below), whose sum is σ = 456177312. Its totient is φ = 101372728.

The previous prime is 253431821. The next prime is 253431853. The reversal of 253431830 is 38134352.

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

It is a junction number, because it is equal to n+sod(n) for n = 253431793 and 253431802.

It is a congruent number.

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, 12671582 + ... + 12671601.

It is an arithmetic number, because the mean of its divisors is an integer number (57022164).

Almost surely, 2^253431830 is an apocalyptic number.

253431830 is a deficient number, since it is larger than the sum of its proper divisors (202745482).

253431830 is a wasteful number, since it uses less digits than its factorization.

253431830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25343190.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 253431830 is about 15919.5423929207. The cubic root of 253431830 is about 632.8299912718.

The spelling of 253431830 in words is "two hundred fifty-three million, four hundred thirty-one thousand, eight hundred thirty".