572093640 has 96 divisors (see below), whose sum is σ = 1866341880. Its totient is φ = 151981056.

The previous prime is 572093633. The next prime is 572093657. The reversal of 572093640 is 46390275.

572093640 is a `hidden beast` number, since 5 + 7 + 2 + 0 + 9 + 3 + 640 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 173132964 + 398960676 = 13158^2 + 19974^2 .

It is a super-2 number, since 2×572093640² = 654582265856899200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 572093595 and 572093604.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96852 + ... + 102588.

Almost surely, 2^572093640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 572093640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (933170940).

572093640 is an abundant number, since it is smaller than the sum of its proper divisors (1294248240).

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

572093640 is a wasteful number, since it uses less digits than its factorization.

572093640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6031 (or 6024 counting only the distinct ones).

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

The square root of 572093640 is about 23918.4790486352. The cubic root of 572093640 is about 830.1483452852.

The spelling of 572093640 in words is "five hundred seventy-two million, ninety-three thousand, six hundred forty".