507445722 has 48 divisors (see below), whose sum is σ = 1303079232. Its totient is φ = 144983520.

The previous prime is 507445717. The next prime is 507445723. The reversal of 507445722 is 227544705.

It is a happy number.

It is a super-2 number, since 2×507445722² = 515002321552202568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (507445723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71179 + ... + 77982.

It is an arithmetic number, because the mean of its divisors is an integer number (27147484).

Almost surely, 2^507445722 is an apocalyptic number.

507445722 is an abundant number, since it is smaller than the sum of its proper divisors (795633510).

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

507445722 is a wasteful number, since it uses less digits than its factorization.

507445722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149185 (or 149173 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 507445722 is about 22526.5559285036. Note that the first 3 decimals coincide. The cubic root of 507445722 is about 797.6209121480.

The spelling of 507445722 in words is "five hundred seven million, four hundred forty-five thousand, seven hundred twenty-two".