272431404 has 96 divisors (see below), whose sum is σ = 812259840. Its totient is φ = 77350464.

The previous prime is 272431391. The next prime is 272431417. The reversal of 272431404 is 404134272.

It is an interprime number because it is at equal distance from previous prime (272431391) and next prime (272431417).

It is a super-2 number, since 2×272431404² = 148437739770822432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 129747 + ... + 131829.

It is an arithmetic number, because the mean of its divisors is an integer number (8461040).

Almost surely, 2^272431404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 272431404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (406129920).

272431404 is an abundant number, since it is smaller than the sum of its proper divisors (539828436).

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

272431404 is a wasteful number, since it uses less digits than its factorization.

272431404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276 (or 2268 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 272431404 is about 16505.4961755168. The cubic root of 272431404 is about 648.2647238007.

Adding to 272431404 its reverse (404134272), we get a palindrome (676565676).

The spelling of 272431404 in words is "two hundred seventy-two million, four hundred thirty-one thousand, four hundred four".