572021662 has 4 divisors (see below), whose sum is σ = 858032496. Its totient is φ = 286010830.

The previous prime is 572021629. The next prime is 572021663. The reversal of 572021662 is 266120275.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572021663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143005414 + ... + 143005417.

It is an arithmetic number, because the mean of its divisors is an integer number (214508124).

Almost surely, 2^572021662 is an apocalyptic number.

572021662 is a deficient number, since it is larger than the sum of its proper divisors (286010834).

572021662 is a wasteful number, since it uses less digits than its factorization.

572021662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286010833.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 572021662 is about 23916.9743487758. The cubic root of 572021662 is about 830.1135287683.

The spelling of 572021662 in words is "five hundred seventy-two million, twenty-one thousand, six hundred sixty-two".