40642020024 has 48 divisors (see below), whose sum is σ = 104988420360. Its totient is φ = 13110321600.

The previous prime is 40642020011. The next prime is 40642020059. The reversal of 40642020024 is 42002024604.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 40642019976 and 40642020003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 858007 + ... + 904134.

Almost surely, 2^40642020024 is an apocalyptic number.

It is an amenable number.

40642020024 is an abundant number, since it is smaller than the sum of its proper divisors (64346400336).

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

40642020024 is a wasteful number, since it uses less digits than its factorization.

40642020024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762212 (or 1762177 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 40642020024 its reverse (42002024604), we get a palindrome (82644044628).

The spelling of 40642020024 in words is "forty billion, six hundred forty-two million, twenty thousand, twenty-four".