2657604340 has 24 divisors (see below), whose sum is σ = 5586642432. Its totient is φ = 1061961120.

The previous prime is 2657604329. The next prime is 2657604349. The reversal of 2657604340 is 434067562.

It is a self number, because there is not a number n which added to its sum of digits gives 2657604340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2657604349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47224 + ... + 86863.

It is an arithmetic number, because the mean of its divisors is an integer number (232776768).

Almost surely, 2^2657604340 is an apocalyptic number.

2657604340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2657604340 is an abundant number, since it is smaller than the sum of its proper divisors (2929038092).

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

2657604340 is a wasteful number, since it uses less digits than its factorization.

2657604340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135087 (or 135085 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 37.

The square root of 2657604340 is about 51551.9576737877. The cubic root of 2657604340 is about 1385.1498992792.

The spelling of 2657604340 in words is "two billion, six hundred fifty-seven million, six hundred four thousand, three hundred forty".