2690625140 has 24 divisors (see below), whose sum is σ = 6457500672. Its totient is φ = 922500000.

The previous prime is 2690625137. The next prime is 2690625181. The reversal of 2690625140 is 415260962.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 2690625140.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9609236 + ... + 9609515.

It is an arithmetic number, because the mean of its divisors is an integer number (269062528).

Almost surely, 2^2690625140 is an apocalyptic number.

2690625140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2690625140 is an abundant number, since it is smaller than the sum of its proper divisors (3766875532).

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

2690625140 is a wasteful number, since it uses less digits than its factorization.

2690625140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19218767 (or 19218765 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 2690625140 is about 51871.2361526116. The cubic root of 2690625140 is about 1390.8631424607.

The spelling of 2690625140 in words is "two billion, six hundred ninety million, six hundred twenty-five thousand, one hundred forty".