400260451 has 2 divisors, whose sum is σ = 400260452. Its totient is φ = 400260450.

The previous prime is 400260431. The next prime is 400260457. The reversal of 400260451 is 154062004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400260451 - 2⁹ = 400259939 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (400260457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200130225 + 200130226.

It is an arithmetic number, because the mean of its divisors is an integer number (200130226).

Almost surely, 2^400260451 is an apocalyptic number.

400260451 is a deficient number, since it is larger than the sum of its proper divisors (1).

400260451 is an equidigital number, since it uses as much as digits as its factorization.

400260451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 400260451 is about 20006.5102154274. The cubic root of 400260451 is about 736.9661833129.

The spelling of 400260451 in words is "four hundred million, two hundred sixty thousand, four hundred fifty-one".