400970413 has 2 divisors, whose sum is σ = 400970414. Its totient is φ = 400970412.

The previous prime is 400970363. The next prime is 400970419. The reversal of 400970413 is 314079004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206841924 + 194128489 = 14382^2 + 13933^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400970413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400970419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200485206 + 200485207.

It is an arithmetic number, because the mean of its divisors is an integer number (200485207).

Almost surely, 2^400970413 is an apocalyptic number.

It is an amenable number.

400970413 is a deficient number, since it is larger than the sum of its proper divisors (1).

400970413 is an equidigital number, since it uses as much as digits as its factorization.

400970413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 400970413 is about 20024.2456287372. The cubic root of 400970413 is about 737.4016572116.

The spelling of 400970413 in words is "four hundred million, nine hundred seventy thousand, four hundred thirteen".