531394704 has 135 divisors (see below), whose sum is σ = 1593897643. Its totient is φ = 165236736.

The previous prime is 531394697. The next prime is 531394709. The reversal of 531394704 is 407493135.

The square root of 531394704 is 23052.

It is a perfect power (a square), and thus also a powerful number.

531394704 is a `hidden beast` number, since 53 + 139 + 470 + 4 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 64834704 + 466560000 = 8052^2 + 21600^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531394709) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4702552 + ... + 4702664.

Almost surely, 2^531394704 is an apocalyptic number.

531394704 is the 23052-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531394704

531394704 is an abundant number, since it is smaller than the sum of its proper divisors (1062502939).

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

531394704 is a wasteful number, since it uses less digits than its factorization.

531394704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The cubic root of 531394704 is about 809.9764785122.

Multiplying 531394704 by its sum of digits (36), we get a square (19130209344 = 138312²).

531394704 divided by its sum of digits (36) gives a square (14760964 = 3842²).

The spelling of 531394704 in words is "five hundred thirty-one million, three hundred ninety-four thousand, seven hundred four".