40005022520 has 16 divisors (see below), whose sum is σ = 90011300760. Its totient is φ = 16002008992.

The previous prime is 40005022513. The next prime is 40005022549. The reversal of 40005022520 is 2522050004.

It is a super-3 number, since 3×40005022520³ (a number of 33 digits) contains 333 as substring.

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 = 40005022492 and 40005022501.

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, 500062742 + ... + 500062821.

Almost surely, 2^40005022520 is an apocalyptic number.

40005022520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40005022520 is an abundant number, since it is smaller than the sum of its proper divisors (50006278240).

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

40005022520 is a wasteful number, since it uses less digits than its factorization.

40005022520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000125574 (or 1000125570 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

Adding to 40005022520 its reverse (2522050004), we get a palindrome (42527072524).

The spelling of 40005022520 in words is "forty billion, five million, twenty-two thousand, five hundred twenty".