40782924 has 144 divisors (see below), whose sum is σ = 129642240. Its totient is φ = 10523520.

The previous prime is 40782923. The next prime is 40782941. The reversal of 40782924 is 42928704.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (40782923) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 193179 + ... + 193389.

Almost surely, 2^40782924 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 40782924, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64821120).

40782924 is an abundant number, since it is smaller than the sum of its proper divisors (88859316).

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

40782924 is a wasteful number, since it uses less digits than its factorization.

40782924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 295 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 40782924 is about 6386.1509534304. The cubic root of 40782924 is about 344.2120897810.

The spelling of 40782924 in words is "forty million, seven hundred eighty-two thousand, nine hundred twenty-four".