40831824 has 80 divisors (see below), whose sum is σ = 121867200. Its totient is φ = 11642880.

The previous prime is 40831801. The next prime is 40831849. The reversal of 40831824 is 42813804.

It is a junction number, because it is equal to n+sod(n) for n = 40831791 and 40831800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6702 + ... + 11250.

It is an arithmetic number, because the mean of its divisors is an integer number (1523340).

Almost surely, 2^40831824 is an apocalyptic number.

40831824 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40831824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60933600).

40831824 is an abundant number, since it is smaller than the sum of its proper divisors (81035376).

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

40831824 is a wasteful number, since it uses less digits than its factorization.

40831824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4588 (or 4582 counting only the distinct ones).

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

The square root of 40831824 is about 6389.9784037194. The cubic root of 40831824 is about 344.3496085156.

The spelling of 40831824 in words is "forty million, eight hundred thirty-one thousand, eight hundred twenty-four".