531994344 has 64 divisors (see below), whose sum is σ = 1521747840. Its totient is φ = 151822080.

The previous prime is 531994321. The next prime is 531994361. The reversal of 531994344 is 443499135.

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

It is a junction number, because it is equal to n+sod(n) for n = 531994296 and 531994305.

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, 230862 + ... + 233154.

It is an arithmetic number, because the mean of its divisors is an integer number (23777310).

Almost surely, 2^531994344 is an apocalyptic number.

It is an amenable number.

531994344 is an abundant number, since it is smaller than the sum of its proper divisors (989753496).

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

531994344 is a wasteful number, since it uses less digits than its factorization.

531994344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690 (or 3686 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The square root of 531994344 is about 23065.0025796660. The cubic root of 531994344 is about 810.2810303618.

The spelling of 531994344 in words is "five hundred thirty-one million, nine hundred ninety-four thousand, three hundred forty-four".