400104407 has 2 divisors, whose sum is σ = 400104408. Its totient is φ = 400104406.

The previous prime is 400104227. The next prime is 400104431. The reversal of 400104407 is 704401004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400104407 - 2⁸ = 400104151 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 (400104437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200052203 + 200052204.

It is an arithmetic number, because the mean of its divisors is an integer number (200052204).

Almost surely, 2^400104407 is an apocalyptic number.

400104407 is a deficient number, since it is larger than the sum of its proper divisors (1).

400104407 is an equidigital number, since it uses as much as digits as its factorization.

400104407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 400104407 is about 20002.6100046969. The cubic root of 400104407 is about 736.8704005974.

The spelling of 400104407 in words is "four hundred million, one hundred four thousand, four hundred seven".