40042400024 has 16 divisors (see below), whose sum is σ = 81904909320. Its totient is φ = 18201090880.

The previous prime is 40042400009. The next prime is 40042400051. The reversal of 40042400024 is 42000424004.

It is a junction number, because it is equal to n+sod(n) for n = 40042399969 and 40042400005.

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, 227513549 + ... + 227513724.

Almost surely, 2^40042400024 is an apocalyptic number.

40042400024 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40042400024 is an abundant number, since it is smaller than the sum of its proper divisors (41862509296).

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

40042400024 is a wasteful number, since it uses less digits than its factorization.

40042400024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455027290 (or 455027286 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 40042400024 its reverse (42000424004), we get a palindrome (82042824028).

It can be divided in two parts, 400 and 42400024, that added together give a palindrome (42400424).

The spelling of 40042400024 in words is "forty billion, forty-two million, four hundred thousand, twenty-four".