40220679528 has 96 divisors (see below), whose sum is σ = 110630108160. Its totient is φ = 13199397120.

The previous prime is 40220679523. The next prime is 40220679529. The reversal of 40220679528 is 82597602204.

40220679528 is a `hidden beast` number, since 40 + 2 + 20 + 67 + 9 + 528 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40220679523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1181076 + ... + 1214652.

It is an arithmetic number, because the mean of its divisors is an integer number (1152396960).

Almost surely, 2^40220679528 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 40220679528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55315054080).

40220679528 is an abundant number, since it is smaller than the sum of its proper divisors (70409428632).

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

40220679528 is a wasteful number, since it uses less digits than its factorization.

40220679528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33847 (or 33840 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 40220679528 in words is "forty billion, two hundred twenty million, six hundred seventy-nine thousand, five hundred twenty-eight".