401822855 has 8 divisors (see below), whose sum is σ = 551071392. Its totient is φ = 275535648.

The previous prime is 401822843. The next prime is 401822891. The reversal of 401822855 is 558228104.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 401822855 - 2¹⁸ = 401560711 is a prime.

It is a super-2 number, since 2×401822855² = 322923213600702050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 11480653 = 401822855 / (4 + 0 + 1 + 8 + 2 + 2 + 8 + 5 + 5).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 5740292 + ... + 5740361.

It is an arithmetic number, because the mean of its divisors is an integer number (68883924).

Almost surely, 2^401822855 is an apocalyptic number.

401822855 is a deficient number, since it is larger than the sum of its proper divisors (149248537).

401822855 is a wasteful number, since it uses less digits than its factorization.

401822855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11480665.

The product of its (nonzero) digits is 25600, while the sum is 35.

The square root of 401822855 is about 20045.5195742091. The cubic root of 401822855 is about 737.9238463783.

The spelling of 401822855 in words is "four hundred one million, eight hundred twenty-two thousand, eight hundred fifty-five".