40545996 has 24 divisors (see below), whose sum is σ = 94730160. Its totient is φ = 13497792.

The previous prime is 40545979. The next prime is 40546001. The reversal of 40545996 is 69954504.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10270 + ... + 13658.

It is an arithmetic number, because the mean of its divisors is an integer number (3947090).

Almost surely, 2^40545996 is an apocalyptic number.

It is an amenable number.

40545996 is an abundant number, since it is smaller than the sum of its proper divisors (54184164).

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

40545996 is a wasteful number, since it uses less digits than its factorization.

40545996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393 (or 4391 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 40545996 is about 6367.5737922697. The cubic root of 40545996 is about 343.5442292016.

The spelling of 40545996 in words is "forty million, five hundred forty-five thousand, nine hundred ninety-six".