40469286 has 64 divisors (see below), whose sum is σ = 96235776. Its totient is φ = 11184000.

The previous prime is 40469281. The next prime is 40469309. The reversal of 40469286 is 68296404.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40469281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86425 + ... + 86891.

It is an arithmetic number, because the mean of its divisors is an integer number (1503684).

Almost surely, 2^40469286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40469286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48117888).

40469286 is an abundant number, since it is smaller than the sum of its proper divisors (55766490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40469286 is a wasteful number, since it uses less digits than its factorization.

40469286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597.

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 40469286 is about 6361.5474532538. The cubic root of 40469286 is about 343.3274390752.

It can be divided in two parts, 40469 and 286, that added together give a triangular number (40755 = T₂₈₅).

The spelling of 40469286 in words is "forty million, four hundred sixty-nine thousand, two hundred eighty-six".