40518196 has 6 divisors (see below), whose sum is σ = 70906850. Its totient is φ = 20259096.

The previous prime is 40518187. The next prime is 40518197. The reversal of 40518196 is 69181504.

It can be written as a sum of positive squares in only one way, i.e., 38613796 + 1904400 = 6214^2 + 1380^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40518197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5064771 + ... + 5064778.

Almost surely, 2^40518196 is an apocalyptic number.

It is an amenable number.

40518196 is a deficient number, since it is larger than the sum of its proper divisors (30388654).

40518196 is a wasteful number, since it uses less digits than its factorization.

40518196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10129553 (or 10129551 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 40518196 is about 6365.3904829162. The cubic root of 40518196 is about 343.4656952394.

The spelling of 40518196 in words is "forty million, five hundred eighteen thousand, one hundred ninety-six".