401850 has 72 divisors (see below), whose sum is σ = 1160640. Its totient is φ = 99360.

The previous prime is 401839. The next prime is 401861. The reversal of 401850 is 58104.

It is an interprime number because it is at equal distance from previous prime (401839) and next prime (401861).

It is a super-2 number, since 2×401850² = 322966845000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8527 + ... + 8573.

It is an arithmetic number, because the mean of its divisors is an integer number (16120).

2⁴⁰¹⁸⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (580320).

401850 is an abundant number, since it is smaller than the sum of its proper divisors (758790).

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

401850 is a wasteful number, since it uses less digits than its factorization.

401850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 401850 is about 633.9163982735. The cubic root of 401850 is about 73.7940462732.

Adding to 401850 its reverse (58104), we get a palindrome (459954).

The spelling of 401850 in words is "four hundred one thousand, eight hundred fifty".