401315850 has 144 divisors (see below), whose sum is σ = 1198137600. Its totient is φ = 98729280.

The previous prime is 401315839. The next prime is 401315867. The reversal of 401315850 is 58513104.

It is a super-2 number, since 2×401315850² = 322108822922445000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 227271 + ... + 229029.

It is an arithmetic number, because the mean of its divisors is an integer number (8320400).

Almost surely, 2^401315850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401315850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599068800).

401315850 is an abundant number, since it is smaller than the sum of its proper divisors (796821750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401315850 is a wasteful number, since it uses less digits than its factorization.

401315850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806 (or 1782 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 401315850 is about 20032.8692403260. The cubic root of 401315850 is about 737.6133542130.

Adding to 401315850 its reverse (58513104), we get a palindrome (459828954).

The spelling of 401315850 in words is "four hundred one million, three hundred fifteen thousand, eight hundred fifty".