401255305 has 8 divisors (see below), whose sum is σ = 525279744. Its totient is φ = 291822000.

The previous prime is 401255303. The next prime is 401255311. The reversal of 401255305 is 503552104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 401255305 - 2¹ = 401255303 is a prime.

It is a super-2 number, since 2×401255305² = 322011639581286050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401255305.

It is not an unprimeable number, because it can be changed into a prime (401255303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3647721 + ... + 3647830.

It is an arithmetic number, because the mean of its divisors is an integer number (65659968).

Almost surely, 2^401255305 is an apocalyptic number.

It is an amenable number.

401255305 is a deficient number, since it is larger than the sum of its proper divisors (124024439).

401255305 is a wasteful number, since it uses less digits than its factorization.

401255305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7295567.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 401255305 is about 20031.3580418303. The cubic root of 401255305 is about 737.5762587045.

The spelling of 401255305 in words is "four hundred one million, two hundred fifty-five thousand, three hundred five".