40797824 has 32 divisors (see below), whose sum is σ = 86062500. Its totient is φ = 19197952.

The previous prime is 40797821. The next prime is 40797853. The reversal of 40797824 is 42879704.

It can be written as a sum of positive squares in 2 ways, for example, as 38837824 + 1960000 = 6232^2 + 1400^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (40797821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7199 + ... + 11550.

Almost surely, 2^40797824 is an apocalyptic number.

It is an amenable number.

40797824 is an abundant number, since it is smaller than the sum of its proper divisors (45264676).

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

40797824 is a wasteful number, since it uses less digits than its factorization.

40797824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18780 (or 18768 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 40797824 is about 6387.3174337902. The cubic root of 40797824 is about 344.2540038565.

The spelling of 40797824 in words is "forty million, seven hundred ninety-seven thousand, eight hundred twenty-four".