400752601 has 2 divisors, whose sum is σ = 400752602. Its totient is φ = 400752600.

The previous prime is 400752563. The next prime is 400752607. The reversal of 400752601 is 106257004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 399800025 + 952576 = 19995^2 + 976^2 .

It is a cyclic number.

It is not a de Polignac number, because 400752601 - 2²¹ = 398655449 is a prime.

It is not a weakly prime, because it can be changed into another prime (400752607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200376300 + 200376301.

It is an arithmetic number, because the mean of its divisors is an integer number (200376301).

Almost surely, 2^400752601 is an apocalyptic number.

It is an amenable number.

400752601 is a deficient number, since it is larger than the sum of its proper divisors (1).

400752601 is an equidigital number, since it uses as much as digits as its factorization.

400752601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 400752601 is about 20018.8061831868. The cubic root of 400752601 is about 737.2681111809.

The spelling of 400752601 in words is "four hundred million, seven hundred fifty-two thousand, six hundred one".