401383239 has 16 divisors (see below), whose sum is σ = 539071200. Its totient is φ = 265650176.

The previous prime is 401383237. The next prime is 401383261. The reversal of 401383239 is 932383104.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 401383239 - 2¹ = 401383237 is a prime.

It is a super-3 number, since 3×401383239³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401383237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284167 + ... + 285575.

It is an arithmetic number, because the mean of its divisors is an integer number (33691950).

Almost surely, 2^401383239 is an apocalyptic number.

401383239 is a deficient number, since it is larger than the sum of its proper divisors (137687961).

401383239 is a wasteful number, since it uses less digits than its factorization.

401383239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 401383239 is about 20034.5511304846. The cubic root of 401383239 is about 737.6546386064.

The spelling of 401383239 in words is "four hundred one million, three hundred eighty-three thousand, two hundred thirty-nine".