401285383 has 4 divisors (see below), whose sum is σ = 415122840. Its totient is φ = 387447928.

The previous prime is 401285351. The next prime is 401285399. The reversal of 401285383 is 383582104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 401285383 - 2⁵ = 401285351 is a prime.

It is a super-2 number, since 2×401285383² = 322059917218913378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401285303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6918685 + ... + 6918742.

It is an arithmetic number, because the mean of its divisors is an integer number (103780710).

Almost surely, 2^401285383 is an apocalyptic number.

401285383 is a deficient number, since it is larger than the sum of its proper divisors (13837457).

401285383 is a wasteful number, since it uses less digits than its factorization.

401285383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13837456.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 401285383 is about 20032.1088006231. The cubic root of 401285383 is about 737.5946877563.

The spelling of 401285383 in words is "four hundred one million, two hundred eighty-five thousand, three hundred eighty-three".