40126986 has 12 divisors (see below), whose sum is σ = 86941842. Its totient is φ = 13375656.

The previous prime is 40126963. The next prime is 40126991. The reversal of 40126986 is 68962104.

It can be written as a sum of positive squares in only one way, i.e., 36832761 + 3294225 = 6069^2 + 1815^2 .

It is a super-2 number, since 2×40126986² = 3220350010888392, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 40126986.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1114621 + ... + 1114656.

Almost surely, 2^40126986 is an apocalyptic number.

40126986 is an abundant number, since it is smaller than the sum of its proper divisors (46814856).

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

40126986 is a wasteful number, since it uses less digits than its factorization.

40126986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2229285 (or 2229282 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 40126986 is about 6334.5864900560. The cubic root of 40126986 is about 342.3567120447.

The spelling of 40126986 in words is "forty million, one hundred twenty-six thousand, nine hundred eighty-six".