40642375100 has 72 divisors (see below), whose sum is σ = 89582235120. Its totient is φ = 16002680320.

The previous prime is 40642375097. The next prime is 40642375117. The reversal of 40642375100 is 157324604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2010242 + ... + 2030358.

It is an arithmetic number, because the mean of its divisors is an integer number (1244197710).

Almost surely, 2^40642375100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40642375100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44791117560).

40642375100 is an abundant number, since it is smaller than the sum of its proper divisors (48939860020).

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

40642375100 is a wasteful number, since it uses less digits than its factorization.

40642375100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20447 (or 20440 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

Adding to 40642375100 its reverse (157324604), we get a palindrome (40799699704).

The spelling of 40642375100 in words is "forty billion, six hundred forty-two million, three hundred seventy-five thousand, one hundred".