401260439 has 2 divisors, whose sum is σ = 401260440. Its totient is φ = 401260438.

The previous prime is 401260361. The next prime is 401260459. The reversal of 401260439 is 934062104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401260439 - 2²⁰ = 400211863 is a prime.

It is a super-2 number, since 2×401260439² = 322019879812945442, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401260459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200630219 + 200630220.

It is an arithmetic number, because the mean of its divisors is an integer number (200630220).

Almost surely, 2^401260439 is an apocalyptic number.

401260439 is a deficient number, since it is larger than the sum of its proper divisors (1).

401260439 is an equidigital number, since it uses as much as digits as its factorization.

401260439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 401260439 is about 20031.4861904952. The cubic root of 401260439 is about 737.5794044161.

The spelling of 401260439 in words is "four hundred one million, two hundred sixty thousand, four hundred thirty-nine".