401924407 has 2 divisors, whose sum is σ = 401924408. Its totient is φ = 401924406.

The previous prime is 401924359. The next prime is 401924417. The reversal of 401924407 is 704429104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401924407 - 2⁷ = 401924279 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401924417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200962203 + 200962204.

It is an arithmetic number, because the mean of its divisors is an integer number (200962204).

Almost surely, 2^401924407 is an apocalyptic number.

401924407 is a deficient number, since it is larger than the sum of its proper divisors (1).

401924407 is an equidigital number, since it uses as much as digits as its factorization.

401924407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 401924407 is about 20048.0524490535. The cubic root of 401924407 is about 737.9860058842.

The spelling of 401924407 in words is "four hundred one million, nine hundred twenty-four thousand, four hundred seven".