40124320324 has 48 divisors (see below), whose sum is σ = 77475041280. Its totient is φ = 18030817440.

The previous prime is 40124320267. The next prime is 40124320333. The reversal of 40124320324 is 42302342104.

It is a happy number.

It is a super-2 number, since 2×40124320324² (a number of 22 digits) contains 22 as substring.

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, 2798157 + ... + 2812459.

It is an arithmetic number, because the mean of its divisors is an integer number (1614063360).

Almost surely, 2^40124320324 is an apocalyptic number.

40124320324 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40124320324 is a deficient number, since it is larger than the sum of its proper divisors (37350720956).

40124320324 is a wasteful number, since it uses less digits than its factorization.

40124320324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15040 (or 15038 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 40124320324 its reverse (42302342104), we get a palindrome (82426662428).

The spelling of 40124320324 in words is "forty billion, one hundred twenty-four million, three hundred twenty thousand, three hundred twenty-four".