400230407 has 2 divisors, whose sum is σ = 400230408. Its totient is φ = 400230406.

The previous prime is 400230403. The next prime is 400230409. The reversal of 400230407 is 704032004.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400230407 - 2² = 400230403 is a prime.

Together with 400230409, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400230403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200115203 + 200115204.

It is an arithmetic number, because the mean of its divisors is an integer number (200115204).

Almost surely, 2^400230407 is an apocalyptic number.

400230407 is a deficient number, since it is larger than the sum of its proper divisors (1).

400230407 is an equidigital number, since it uses as much as digits as its factorization.

400230407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 400230407 is about 20005.7593457484. The cubic root of 400230407 is about 736.9477436811.

The spelling of 400230407 in words is "four hundred million, two hundred thirty thousand, four hundred seven".