2857972 has 48 divisors (see below), whose sum is σ = 5905872. Its totient is φ = 1198080.

The previous prime is 2857951. The next prime is 2857973. The reversal of 2857972 is 2797582.

It can be written as a sum of positive squares in 8 ways, for example, as 155236 + 2702736 = 394^2 + 1644^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2857973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46822 + ... + 46882.

It is an arithmetic number, because the mean of its divisors is an integer number (123039).

2^2857972 is an apocalyptic number.

It is an amenable number.

2857972 is an abundant number, since it is smaller than the sum of its proper divisors (3047900).

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

2857972 is a wasteful number, since it uses less digits than its factorization.

2857972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 146 counting only the distinct ones).

The product of its digits is 70560, while the sum is 40.

The square root of 2857972 is about 1690.5537554305. The cubic root of 2857972 is about 141.9120661690.

The spelling of 2857972 in words is "two million, eight hundred fifty-seven thousand, nine hundred seventy-two".