2043626257 has 4 divisors (see below), whose sum is σ = 2052106276. Its totient is φ = 2035146240.

The previous prime is 2043626251. The next prime is 2043626279. The reversal of 2043626257 is 7526263402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 875627281 + 1167998976 = 29591^2 + 34176^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043626257 - 2¹⁹ = 2043101969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2043626251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4239648 + ... + 4240129.

It is an arithmetic number, because the mean of its divisors is an integer number (513026569).

Almost surely, 2^2043626257 is an apocalyptic number.

It is an amenable number.

2043626257 is a deficient number, since it is larger than the sum of its proper divisors (8480019).

2043626257 is an equidigital number, since it uses as much as digits as its factorization.

2043626257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8480018.

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

The square root of 2043626257 is about 45206.4846786387. The cubic root of 2043626257 is about 1269.0161758769.

Adding to 2043626257 its reverse (7526263402), we get a palindrome (9569889659).

The spelling of 2043626257 in words is "two billion, forty-three million, six hundred twenty-six thousand, two hundred fifty-seven".