401306285 has 16 divisors (see below), whose sum is σ = 485291520. Its totient is φ = 318574080.

The previous prime is 401306261. The next prime is 401306299. The reversal of 401306285 is 582603104.

It is not a de Polignac number, because 401306285 - 2⁶ = 401306221 is a prime.

It is a super-2 number, since 2×401306285² = 322093468761002450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 477896 + ... + 478734.

It is an arithmetic number, because the mean of its divisors is an integer number (30330720).

Almost surely, 2^401306285 is an apocalyptic number.

It is an amenable number.

401306285 is a deficient number, since it is larger than the sum of its proper divisors (83985235).

401306285 is a wasteful number, since it uses less digits than its factorization.

401306285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 401306285 is about 20032.6305062515. The cubic root of 401306285 is about 737.6074940509.

Adding to 401306285 its reverse (582603104), we get a palindrome (983909389).

The spelling of 401306285 in words is "four hundred one million, three hundred six thousand, two hundred eighty-five".