400286481 has 8 divisors (see below), whose sum is σ = 609960384. Its totient is φ = 228735120.

The previous prime is 400286473. The next prime is 400286519. The reversal of 400286481 is 184682004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 400286481 - 2³ = 400286473 is a prime.

It is a super-2 number, since 2×400286481² = 320458533742726722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400285481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9530610 + ... + 9530651.

It is an arithmetic number, because the mean of its divisors is an integer number (76245048).

Almost surely, 2^400286481 is an apocalyptic number.

It is an amenable number.

400286481 is a deficient number, since it is larger than the sum of its proper divisors (209673903).

400286481 is a wasteful number, since it uses less digits than its factorization.

400286481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19061271.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 400286481 is about 20007.1607430940. The cubic root of 400286481 is about 736.9821585892.

The spelling of 400286481 in words is "four hundred million, two hundred eighty-six thousand, four hundred eighty-one".