581872452 has 36 divisors (see below), whose sum is σ = 1579369680. Its totient is φ = 166249104.

The previous prime is 581872433. The next prime is 581872457. The reversal of 581872452 is 254278185.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (581872457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 494202 + ... + 495377.

It is an arithmetic number, because the mean of its divisors is an integer number (43871380).

Almost surely, 2^581872452 is an apocalyptic number.

It is an amenable number.

581872452 is an abundant number, since it is smaller than the sum of its proper divisors (997497228).

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

581872452 is a wasteful number, since it uses less digits than its factorization.

581872452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989600 (or 989591 counting only the distinct ones).

The product of its digits is 179200, while the sum is 42.

The square root of 581872452 is about 24122.0325014291. The cubic root of 581872452 is about 834.8515648036.

The spelling of 581872452 in words is "five hundred eighty-one million, eight hundred seventy-two thousand, four hundred fifty-two".