4000204457 has 2 divisors, whose sum is σ = 4000204458. Its totient is φ = 4000204456.

The previous prime is 4000204441. The next prime is 4000204477. The reversal of 4000204457 is 7544020004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3589088281 + 411116176 = 59909^2 + 20276^2 .

It is a cyclic number.

It is not a de Polignac number, because 4000204457 - 2⁴ = 4000204441 is a prime.

It is not a weakly prime, because it can be changed into another prime (4000204477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000102228 + 2000102229.

It is an arithmetic number, because the mean of its divisors is an integer number (2000102229).

Almost surely, 2^4000204457 is an apocalyptic number.

It is an amenable number.

4000204457 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000204457 is an equidigital number, since it uses as much as digits as its factorization.

4000204457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 4000204457 is about 63247.1695572221. The cubic root of 4000204457 is about 1587.4280977788.

The spelling of 4000204457 in words is "four billion, two hundred four thousand, four hundred fifty-seven".