2390075640 has 64 divisors (see below), whose sum is σ = 7966922400. Its totient is φ = 637353216.

The previous prime is 2390075609. The next prime is 2390075647. The reversal of 2390075640 is 465700932.

2390075640 is a `hidden beast` number, since 2 + 3 + 9 + 0 + 0 + 7 + 5 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2390075595 and 2390075604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2390075647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1105437 + ... + 1107596.

Almost surely, 2^2390075640 is an apocalyptic number.

2390075640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2390075640 is an abundant number, since it is smaller than the sum of its proper divisors (5576846760).

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

2390075640 is a wasteful number, since it uses less digits than its factorization.

2390075640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2213053 (or 2213043 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 2390075640 is about 48888.3998510894. The cubic root of 2390075640 is about 1337.0178800963.

The spelling of 2390075640 in words is "two billion, three hundred ninety million, seventy-five thousand, six hundred forty".