572743440 has 160 divisors (see below), whose sum is σ = 2010407040. Its totient is φ = 149819904.

The previous prime is 572743421. The next prime is 572743459. The reversal of 572743440 is 44347275.

572743440 is a `hidden beast` number, since 572 + 7 + 43 + 4 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (572743421) and next prime (572743459).

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 = 572743395 and 572743404.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111979 + ... + 116981.

It is an arithmetic number, because the mean of its divisors is an integer number (12565044).

Almost surely, 2^572743440 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 572743440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1005203520).

572743440 is an abundant number, since it is smaller than the sum of its proper divisors (1437663600).

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

572743440 is a wasteful number, since it uses less digits than its factorization.

572743440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5078 (or 5066 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 36.

The square root of 572743440 is about 23932.0588332889. The cubic root of 572743440 is about 830.4625282863.

The spelling of 572743440 in words is "five hundred seventy-two million, seven hundred forty-three thousand, four hundred forty".