40736986 has 8 divisors (see below), whose sum is σ = 61214580. Its totient is φ = 20332128.

The previous prime is 40736977. The next prime is 40737017. The reversal of 40736986 is 68963704.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 33419961 + 7317025 = 5781^2 + 2705^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16761 + ... + 19036.

Almost surely, 2^40736986 is an apocalyptic number.

40736986 is a deficient number, since it is larger than the sum of its proper divisors (20477594).

40736986 is a wasteful number, since it uses less digits than its factorization.

40736986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36368.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 40736986 is about 6382.5532508550. The cubic root of 40736986 is about 344.0828007371.

It can be divided in two parts, 4073698 and 6, that added together give a palindrome (4073704).

The spelling of 40736986 in words is "forty million, seven hundred thirty-six thousand, nine hundred eighty-six".