40240124020 has 12 divisors (see below), whose sum is σ = 84504260484. Its totient is φ = 16096049600.

The previous prime is 40240124011. The next prime is 40240124069. The reversal of 40240124020 is 2042104204.

It can be written as a sum of positive squares in 2 ways, for example, as 17168336784 + 23071787236 = 131028^2 + 151894^2 .

It is a super-2 number, since 2×40240124020² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006003081 + ... + 1006003120.

It is an arithmetic number, because the mean of its divisors is an integer number (7042021707).

Almost surely, 2^40240124020 is an apocalyptic number.

It is an amenable number.

40240124020 is an abundant number, since it is smaller than the sum of its proper divisors (44264136464).

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

40240124020 is a wasteful number, since it uses less digits than its factorization.

40240124020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012006210 (or 2012006208 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 40240124020 its reverse (2042104204), we get a palindrome (42282228224).

The spelling of 40240124020 in words is "forty billion, two hundred forty million, one hundred twenty-four thousand, twenty".