40038782 has 24 divisors (see below), whose sum is σ = 70435584. Its totient is φ = 17019072.

The previous prime is 40038781. The next prime is 40038793. The reversal of 40038782 is 28783004.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40038781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10838 + ... + 14054.

It is an arithmetic number, because the mean of its divisors is an integer number (2934816).

Almost surely, 2^40038782 is an apocalyptic number.

40038782 is a deficient number, since it is larger than the sum of its proper divisors (30396802).

40038782 is a wasteful number, since it uses less digits than its factorization.

40038782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360 (or 3353 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 40038782 is about 6327.6205638455. The cubic root of 40038782 is about 342.1056807793.

The spelling of 40038782 in words is "forty million, thirty-eight thousand, seven hundred eighty-two".