401427759 has 4 divisors (see below), whose sum is σ = 535237016. Its totient is φ = 267618504.

The previous prime is 401427751. The next prime is 401427781. The reversal of 401427759 is 957724104.

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

It is not a de Polignac number, because 401427759 - 2³ = 401427751 is a prime.

It is a super-2 number, since 2×401427759² = 322288491391524162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401427751) 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, 66904624 + ... + 66904629.

It is an arithmetic number, because the mean of its divisors is an integer number (133809254).

Almost surely, 2^401427759 is an apocalyptic number.

401427759 is a deficient number, since it is larger than the sum of its proper divisors (133809257).

401427759 is a wasteful number, since it uses less digits than its factorization.

401427759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133809256.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 401427759 is about 20035.6621802225. The cubic root of 401427759 is about 737.6819102737.

The spelling of 401427759 in words is "four hundred one million, four hundred twenty-seven thousand, seven hundred fifty-nine".