40986436 has 6 divisors (see below), whose sum is σ = 71726270. Its totient is φ = 20493216.

The previous prime is 40986431. The next prime is 40986467. The reversal of 40986436 is 63468904.

It can be written as a sum of positive squares in only one way, i.e., 28026436 + 12960000 = 5294^2 + 3600^2 .

It is not an unprimeable number, because it can be changed into a prime (40986431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5123301 + ... + 5123308.

Almost surely, 2^40986436 is an apocalyptic number.

It is an amenable number.

40986436 is a deficient number, since it is larger than the sum of its proper divisors (30739834).

40986436 is a wasteful number, since it uses less digits than its factorization.

40986436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10246613 (or 10246611 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 40986436 is about 6402.0649793641. The cubic root of 40986436 is about 344.7836941379.

The spelling of 40986436 in words is "forty million, nine hundred eighty-six thousand, four hundred thirty-six".