2657960 has 16 divisors (see below), whose sum is σ = 5980500. Its totient is φ = 1063168.

The previous prime is 2657951. The next prime is 2657999. The reversal of 2657960 is 697562.

It can be written as a sum of positive squares in 2 ways, for example, as 2502724 + 155236 = 1582^2 + 394^2 .

It is a super-3 number, since 3×2657960³ = 56333479587235008000, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2657960.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33185 + ... + 33264.

2^2657960 is an apocalyptic number.

2657960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2657960 is an abundant number, since it is smaller than the sum of its proper divisors (3322540).

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

2657960 is a wasteful number, since it uses less digits than its factorization.

2657960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66460 (or 66456 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 2657960 is about 1630.3251209498. The cubic root of 2657960 is about 138.5211686811.

The spelling of 2657960 in words is "two million, six hundred fifty-seven thousand, nine hundred sixty".