572783438 has 4 divisors (see below), whose sum is σ = 859175160. Its totient is φ = 286391718.

The previous prime is 572783429. The next prime is 572783509. The reversal of 572783438 is 834387275.

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

It is a junction number, because it is equal to n+sod(n) for n = 572783392 and 572783401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143195858 + ... + 143195861.

It is an arithmetic number, because the mean of its divisors is an integer number (214793790).

Almost surely, 2^572783438 is an apocalyptic number.

572783438 is a deficient number, since it is larger than the sum of its proper divisors (286391722).

572783438 is a wasteful number, since it uses less digits than its factorization.

572783438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286391721.

The product of its digits is 1128960, while the sum is 47.

The square root of 572783438 is about 23932.8944760136. The cubic root of 572783438 is about 830.4818598431.

The spelling of 572783438 in words is "five hundred seventy-two million, seven hundred eighty-three thousand, four hundred thirty-eight".