40422752406 has 80 divisors (see below), whose sum is σ = 93816653040. Its totient is φ = 12993462720.

The previous prime is 40422752353. The next prime is 40422752407. The reversal of 40422752406 is 60425722404.

40422752406 is a `hidden beast` number, since 404 + 2 + 2 + 7 + 5 + 240 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40422752407) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4115241 + ... + 4125051.

It is an arithmetic number, because the mean of its divisors is an integer number (1172708163).

Almost surely, 2^40422752406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40422752406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46908326520).

40422752406 is an abundant number, since it is smaller than the sum of its proper divisors (53393900634).

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

40422752406 is a wasteful number, since it uses less digits than its factorization.

40422752406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10731 (or 10722 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 36.

The spelling of 40422752406 in words is "forty billion, four hundred twenty-two million, seven hundred fifty-two thousand, four hundred six".