2431890657 has 12 divisors (see below), whose sum is σ = 4014549760. Its totient is φ = 1389651768.

The previous prime is 2431890653. The next prime is 2431890677. The reversal of 2431890657 is 7560981342.

2431890657 is digitally balanced in base 2 and base 10, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2431890657 - 2² = 2431890653 is a prime.

It is a Duffinian number.

2431890657 is strictly pandigital in base 10.

It is not an unprimeable number, because it can be changed into a prime (2431890653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19300657 + ... + 19300782.

It is a 1-persistent number, because it is pandigital, but 2⋅2431890657 = 4863781314 is not.

Almost surely, 2^2431890657 is an apocalyptic number.

It is an amenable number.

2431890657 is a deficient number, since it is larger than the sum of its proper divisors (1582659103).

2431890657 is a wasteful number, since it uses less digits than its factorization.

2431890657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38601452 (or 38601449 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2431890657 is about 49314.2034002375. The cubic root of 2431890657 is about 1344.7700084440.

The spelling of 2431890657 in words is "two billion, four hundred thirty-one million, eight hundred ninety thousand, six hundred fifty-seven".