571040920 has 16 divisors (see below), whose sum is σ = 1284842160. Its totient is φ = 228416352.

The previous prime is 571040891. The next prime is 571040923. The reversal of 571040920 is 29040175.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (571040923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7137972 + ... + 7138051.

It is an arithmetic number, because the mean of its divisors is an integer number (80302635).

Almost surely, 2^571040920 is an apocalyptic number.

It is an amenable number.

571040920 is an abundant number, since it is smaller than the sum of its proper divisors (713801240).

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

571040920 is a wasteful number, since it uses less digits than its factorization.

571040920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14276034 (or 14276030 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 571040920 is about 23896.4624997090. The cubic root of 571040920 is about 829.6388422433.

The spelling of 571040920 in words is "five hundred seventy-one million, forty thousand, nine hundred twenty".