401907 has 16 divisors (see below), whose sum is σ = 616320. Its totient is φ = 230400.

The previous prime is 401903. The next prime is 401909. The reversal of 401907 is 709104.

It is not a de Polignac number, because 401907 - 2² = 401903 is a prime.

It is not an unprimeable number, because it can be changed into a prime (401903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307 + ... + 947.

It is an arithmetic number, because the mean of its divisors is an integer number (38520).

2⁴⁰¹⁹⁰⁷ is an apocalyptic number.

401907 is a deficient number, since it is larger than the sum of its proper divisors (214413).

401907 is a wasteful number, since it uses less digits than its factorization.

401907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 401907 is about 633.9613552891. The cubic root of 401907 is about 73.7975351884.

The spelling of 401907 in words is "four hundred one thousand, nine hundred seven".