400536286 has 8 divisors (see below), whose sum is σ = 636145920. Its totient is φ = 188487648.

The previous prime is 400536281. The next prime is 400536319. The reversal of 400536286 is 682635004.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 11780479 = 400536286 / (4 + 0 + 0 + 5 + 3 + 6 + 2 + 8 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400536281) 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, 5890206 + ... + 5890273.

It is an arithmetic number, because the mean of its divisors is an integer number (79518240).

Almost surely, 2^400536286 is an apocalyptic number.

400536286 is a deficient number, since it is larger than the sum of its proper divisors (235609634).

400536286 is a wasteful number, since it uses less digits than its factorization.

400536286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11780498.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 400536286 is about 20013.4026592181. The cubic root of 400536286 is about 737.1354350990.

The spelling of 400536286 in words is "four hundred million, five hundred thirty-six thousand, two hundred eighty-six".