572439109 has 8 divisors (see below), whose sum is σ = 625457952. Its totient is φ = 519583440.

The previous prime is 572439103. The next prime is 572439121. The reversal of 572439109 is 901934275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 572439109 - 2¹⁹ = 571914821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (572439103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33394 + ... + 47539.

It is an arithmetic number, because the mean of its divisors is an integer number (78182244).

Almost surely, 2^572439109 is an apocalyptic number.

It is an amenable number.

572439109 is a deficient number, since it is larger than the sum of its proper divisors (53018843).

572439109 is a wasteful number, since it uses less digits than its factorization.

572439109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81587.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 572439109 is about 23925.6997598816. The cubic root of 572439109 is about 830.3154116476.

The spelling of 572439109 in words is "five hundred seventy-two million, four hundred thirty-nine thousand, one hundred nine".