2590775640 has 96 divisors (see below), whose sum is σ = 8426948400. Its totient is φ = 690305280.

The previous prime is 2590775597. The next prime is 2590775641. The reversal of 2590775640 is 465770952.

2590775640 is a `hidden beast` number, since 2 + 590 + 7 + 7 + 56 + 4 + 0 = 666.

It is a super-3 number, since 3×2590775640³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2590775641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 613135 + ... + 617345.

Almost surely, 2^2590775640 is an apocalyptic number.

2590775640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2590775640 is an abundant number, since it is smaller than the sum of its proper divisors (5836172760).

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

2590775640 is a wasteful number, since it uses less digits than its factorization.

2590775640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5937 (or 5930 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

The square root of 2590775640 is about 50899.6624743230. The cubic root of 2590775640 is about 1373.4407696032.

The spelling of 2590775640 in words is "two billion, five hundred ninety million, seven hundred seventy-five thousand, six hundred forty".