40869786 has 16 divisors (see below), whose sum is σ = 82583424. Its totient is φ = 13482624.

The previous prime is 40869757. The next prime is 40869791. The reversal of 40869786 is 68796804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34530 + ... + 35693.

It is an arithmetic number, because the mean of its divisors is an integer number (5161464).

Almost surely, 2^40869786 is an apocalyptic number.

40869786 is an abundant number, since it is smaller than the sum of its proper divisors (41713638).

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

40869786 is a wasteful number, since it uses less digits than its factorization.

40869786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70325.

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 40869786 is about 6392.9481461998. The cubic root of 40869786 is about 344.4562912409.

The spelling of 40869786 in words is "forty million, eight hundred sixty-nine thousand, seven hundred eighty-six".