40024251020 has 48 divisors (see below), whose sum is σ = 90610174368. Its totient is φ = 14762872320.

The previous prime is 40024250999. The next prime is 40024251073. The reversal of 40024251020 is 2015242004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 40024250983 and 40024251001.

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, 173192 + ... + 331728.

It is an arithmetic number, because the mean of its divisors is an integer number (1887711966).

Almost surely, 2^40024251020 is an apocalyptic number.

It is an amenable number.

40024251020 is an abundant number, since it is smaller than the sum of its proper divisors (50585923348).

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

40024251020 is a wasteful number, since it uses less digits than its factorization.

40024251020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159530 (or 159528 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 40024251020 its reverse (2015242004), we get a palindrome (42039493024).

The spelling of 40024251020 in words is "forty billion, twenty-four million, two hundred fifty-one thousand, twenty".