40245936 has 160 divisors (see below), whose sum is σ = 119420928. Its totient is φ = 11612160.

The previous prime is 40245923. The next prime is 40245937. The reversal of 40245936 is 63954204.

It is a junction number, because it is equal to n+sod(n) for n = 40245897 and 40245906.

It is not an unprimeable number, because it can be changed into a prime (40245937) 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 31 ways as a sum of consecutive naturals, for example, 935931 + ... + 935973.

Almost surely, 2^40245936 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 40245936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59710464).

40245936 is an abundant number, since it is smaller than the sum of its proper divisors (79174992).

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

40245936 is a wasteful number, since it uses less digits than its factorization.

40245936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 40245936 is about 6343.9684740705. The cubic root of 40245936 is about 342.6946654757.

The spelling of 40245936 in words is "forty million, two hundred forty-five thousand, nine hundred thirty-six".