40469289984 has 264 divisors, whose sum is σ = 122436146560. Its totient is φ = 13350334464.

The previous prime is 40469289983. The next prime is 40469290019. The reversal of 40469289984 is 48998296404.

40469289984 is a `hidden beast` number, since 4 + 0 + 469 + 2 + 8 + 99 + 84 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40469289983) 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, 25628907 + ... + 25630485.

Almost surely, 2^40469289984 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 40469289984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61218073280).

40469289984 is an abundant number, since it is smaller than the sum of its proper divisors (81966856576).

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

40469289984 is a wasteful number, since it uses less digits than its factorization.

40469289984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717 (or 1687 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 63.

The spelling of 40469289984 in words is "forty billion, four hundred sixty-nine million, two hundred eighty-nine thousand, nine hundred eighty-four".