40782974 has 4 divisors (see below), whose sum is σ = 61174464. Its totient is φ = 20391486.

The previous prime is 40782947. The next prime is 40782977. The reversal of 40782974 is 47928704.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40782977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10195742 + ... + 10195745.

It is an arithmetic number, because the mean of its divisors is an integer number (15293616).

Almost surely, 2^40782974 is an apocalyptic number.

40782974 is a deficient number, since it is larger than the sum of its proper divisors (20391490).

40782974 is a wasteful number, since it uses less digits than its factorization.

40782974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20391489.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 40782974 is about 6386.1548681503. The cubic root of 40782974 is about 344.2122304493.

The spelling of 40782974 in words is "forty million, seven hundred eighty-two thousand, nine hundred seventy-four".