40824381 has 8 divisors (see below), whose sum is σ = 58619680. Its totient is φ = 25122672.

The previous prime is 40824349. The next prime is 40824409. The reversal of 40824381 is 18342804.

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

It is not a de Polignac number, because 40824381 - 2⁵ = 40824349 is a prime.

It is a super-2 number, since 2×40824381² = 3333260168066322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40824781) by changing a digit.

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, 523351 + ... + 523428.

It is an arithmetic number, because the mean of its divisors is an integer number (7327460).

Almost surely, 2^40824381 is an apocalyptic number.

It is an amenable number.

40824381 is a deficient number, since it is larger than the sum of its proper divisors (17795299).

40824381 is a wasteful number, since it uses less digits than its factorization.

40824381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046795.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 40824381 is about 6389.3959808420. The cubic root of 40824381 is about 344.3286840697.

The spelling of 40824381 in words is "forty million, eight hundred twenty-four thousand, three hundred eighty-one".