40884731 has 8 divisors (see below), whose sum is σ = 43143840. Its totient is φ = 38665792.

The previous prime is 40884719. The next prime is 40884733. The reversal of 40884731 is 13748804.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40884731 - 2¹⁸ = 40622587 is a prime.

It is a super-2 number, since 2×40884731² = 3343122457884722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40884691 and 40884700.

It is not an unprimeable number, because it can be changed into a prime (40884733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7940 + ... + 12033.

It is an arithmetic number, because the mean of its divisors is an integer number (5392980).

Almost surely, 2^40884731 is an apocalyptic number.

40884731 is a deficient number, since it is larger than the sum of its proper divisors (2259109).

40884731 is a wasteful number, since it uses less digits than its factorization.

40884731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20085.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 40884731 is about 6394.1169054061. The cubic root of 40884731 is about 344.4982723099.

The spelling of 40884731 in words is "forty million, eight hundred eighty-four thousand, seven hundred thirty-one".