400032107 has 2 divisors, whose sum is σ = 400032108. Its totient is φ = 400032106.

The previous prime is 400032067. The next prime is 400032109. The reversal of 400032107 is 701230004.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 400032107 - 2⁸ = 400031851 is a prime.

Together with 400032109, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (400032109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200016053 + 200016054.

It is an arithmetic number, because the mean of its divisors is an integer number (200016054).

Almost surely, 2^400032107 is an apocalyptic number.

400032107 is a deficient number, since it is larger than the sum of its proper divisors (1).

400032107 is an equidigital number, since it uses as much as digits as its factorization.

400032107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 400032107 is about 20000.8026588935. The cubic root of 400032107 is about 736.8260130672.

The spelling of 400032107 in words is "four hundred million, thirty-two thousand, one hundred seven".