40024424040 has 64 divisors (see below), whose sum is σ = 120090081600. Its totient is φ = 10671685632.

The previous prime is 40024424017. The next prime is 40024424047. The reversal of 40024424040 is 4042442004.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 40024424040.

It is not an unprimeable number, because it can be changed into a prime (40024424047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1037416 + ... + 1075304.

It is an arithmetic number, because the mean of its divisors is an integer number (1876407525).

Almost surely, 2^40024424040 is an apocalyptic number.

40024424040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40024424040 is an abundant number, since it is smaller than the sum of its proper divisors (80065657560).

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

40024424040 is a wasteful number, since it uses less digits than its factorization.

40024424040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46706 (or 46702 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 40024424040 its reverse (4042442004), we get a palindrome (44066866044).

The spelling of 40024424040 in words is "forty billion, twenty-four million, four hundred twenty-four thousand, forty".