40349286 has 32 divisors (see below), whose sum is σ = 89964000. Its totient is φ = 13404960.

The previous prime is 40349273. The next prime is 40349303. The reversal of 40349286 is 68294304.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40349286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17776 + ... + 19916.

It is an arithmetic number, because the mean of its divisors is an integer number (2811375).

Almost surely, 2^40349286 is an apocalyptic number.

40349286 is an abundant number, since it is smaller than the sum of its proper divisors (49614714).

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

40349286 is a wasteful number, since it uses less digits than its factorization.

40349286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501 (or 2495 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 40349286 is about 6352.1087837033. The cubic root of 40349286 is about 342.9877569317.

The spelling of 40349286 in words is "forty million, three hundred forty-nine thousand, two hundred eighty-six".