40891996 has 6 divisors (see below), whose sum is σ = 71561000. Its totient is φ = 20445996.

The previous prime is 40891979. The next prime is 40891997. The reversal of 40891996 is 69919804.

It is a super-3 number, since 3×40891996³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40891997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5111496 + ... + 5111503.

Almost surely, 2^40891996 is an apocalyptic number.

It is an amenable number.

40891996 is a deficient number, since it is larger than the sum of its proper divisors (30669004).

40891996 is a wasteful number, since it uses less digits than its factorization.

40891996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10223003 (or 10223001 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 40891996 is about 6394.6849805131. The cubic root of 40891996 is about 344.5186762737.

The spelling of 40891996 in words is "forty million, eight hundred ninety-one thousand, nine hundred ninety-six".