40297936 has 80 divisors (see below), whose sum is σ = 97315200. Its totient is φ = 15773184.

The previous prime is 40297927. The next prime is 40297949. The reversal of 40297936 is 63979204.

40297936 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61386 + ... + 62038.

It is an arithmetic number, because the mean of its divisors is an integer number (1216440).

Almost surely, 2^40297936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40297936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48657600).

40297936 is an abundant number, since it is smaller than the sum of its proper divisors (57017264).

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

40297936 is a wasteful number, since it uses less digits than its factorization.

40297936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 40297936 is about 6348.0655321129. The cubic root of 40297936 is about 342.8421955124.

The spelling of 40297936 in words is "forty million, two hundred ninety-seven thousand, nine hundred thirty-six".