401859 has 6 divisors (see below), whose sum is σ = 580476. Its totient is φ = 267900.

The previous prime is 401839. The next prime is 401861. The reversal of 401859 is 958104.

401859 = T₉₄ + T₉₅ + ... + T₁₄₇.

It is not a de Polignac number, because 401859 - 2⁵ = 401827 is a prime.

It is a super-2 number, since 2×401859² = 322981311762, which contains 22 as substring.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (401809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22317 + ... + 22334.

It is an arithmetic number, because the mean of its divisors is an integer number (96746).

2⁴⁰¹⁸⁵⁹ is an apocalyptic number.

401859 is a deficient number, since it is larger than the sum of its proper divisors (178617).

401859 is a wasteful number, since it uses less digits than its factorization.

401859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44657 (or 44654 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 401859 is about 633.9234969616. The cubic root of 401859 is about 73.7945971765.

The spelling of 401859 in words is "four hundred one thousand, eight hundred fifty-nine".