2571772 has 24 divisors (see below), whose sum is σ = 5243616. Its totient is φ = 1080768.

The previous prime is 2571757. The next prime is 2571773. The reversal of 2571772 is 2771752.

It is a super-2 number, since 2×2571772² = 13228022439968, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2571773) 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, 618 + ... + 2350.

It is an arithmetic number, because the mean of its divisors is an integer number (218484).

2^2571772 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 2571772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2621808).

2571772 is an abundant number, since it is smaller than the sum of its proper divisors (2671844).

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

2571772 is a wasteful number, since it uses less digits than its factorization.

2571772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797 (or 1795 counting only the distinct ones).

The product of its digits is 6860, while the sum is 31.

The square root of 2571772 is about 1603.6745305703. The cubic root of 2571772 is about 137.0074409442.

The spelling of 2571772 in words is "two million, five hundred seventy-one thousand, seven hundred seventy-two".