40497696 has 36 divisors (see below), whose sum is σ = 115166142. Its totient is φ = 13499136.

The previous prime is 40497673. The next prime is 40497697. The reversal of 40497696 is 69679404.

It can be written as a sum of positive squares in only one way, i.e., 35569296 + 4928400 = 5964^2 + 2220^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (40497697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70021 + ... + 70596.

Almost surely, 2^40497696 is an apocalyptic number.

It is an amenable number.

40497696 is an abundant number, since it is smaller than the sum of its proper divisors (74668446).

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

40497696 is a wasteful number, since it uses less digits than its factorization.

40497696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140633 (or 140622 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 40497696 is about 6363.7800087684. The cubic root of 40497696 is about 343.4077604904.

The spelling of 40497696 in words is "forty million, four hundred ninety-seven thousand, six hundred ninety-six".