401361907 has 4 divisors (see below), whose sum is σ = 401789376. Its totient is φ = 400934440.

The previous prime is 401361901. The next prime is 401361911. The reversal of 401361907 is 709163104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401361907 - 2³ = 401361899 is a prime.

It is a super-2 number, since 2×401361907² = 322182760781353298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401361901) 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 in 3 ways as a sum of consecutive naturals, for example, 212323 + ... + 214204.

It is an arithmetic number, because the mean of its divisors is an integer number (100447344).

Almost surely, 2^401361907 is an apocalyptic number.

401361907 is a deficient number, since it is larger than the sum of its proper divisors (427469).

401361907 is an equidigital number, since it uses as much as digits as its factorization.

401361907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427468.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 401361907 is about 20034.0187431279. The cubic root of 401361907 is about 737.6415705242.

The spelling of 401361907 in words is "four hundred one million, three hundred sixty-one thousand, nine hundred seven".