401985259 has 12 divisors (see below), whose sum is σ = 440810400. Its totient is φ = 366354144.

The previous prime is 401985251. The next prime is 401985271. The reversal of 401985259 is 952589104.

It is not a de Polignac number, because 401985259 - 2³ = 401985251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401985251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1704 + ... + 28405.

It is an arithmetic number, because the mean of its divisors is an integer number (36734200).

Almost surely, 2^401985259 is an apocalyptic number.

401985259 is a deficient number, since it is larger than the sum of its proper divisors (38825141).

401985259 is a wasteful number, since it uses less digits than its factorization.

401985259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30214 (or 30201 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 43.

The square root of 401985259 is about 20049.5700452653. The cubic root of 401985259 is about 738.0232480932.

The spelling of 401985259 in words is "four hundred one million, nine hundred eighty-five thousand, two hundred fifty-nine".