431155480 has 64 divisors (see below), whose sum is σ = 1127520000. Its totient is φ = 145313664.

The previous prime is 431155469. The next prime is 431155553. The reversal of 431155480 is 84551134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3471 + ... + 29569.

It is an arithmetic number, because the mean of its divisors is an integer number (17617500).

Almost surely, 2^431155480 is an apocalyptic number.

431155480 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 431155480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (563760000).

431155480 is an abundant number, since it is smaller than the sum of its proper divisors (696364520).

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

431155480 is a wasteful number, since it uses less digits than its factorization.

431155480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26176 (or 26172 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 431155480 is about 20764.2837584156. The cubic root of 431155480 is about 755.4597027896.

The spelling of 431155480 in words is "four hundred thirty-one million, one hundred fifty-five thousand, four hundred eighty".