40436921088 has 180 divisors, whose sum is σ = 123519046728. Its totient is φ = 13149941760.

The previous prime is 40436921053. The next prime is 40436921093. The reversal of 40436921088 is 88012963404.

It is a happy number.

40436921088 is a `hidden beast` number, since 40 + 436 + 92 + 10 + 88 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 826395 + ... + 873957.

Almost surely, 2^40436921088 is an apocalyptic number.

40436921088 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40436921088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61759523364).

40436921088 is an abundant number, since it is smaller than the sum of its proper divisors (83082125640).

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

40436921088 is an equidigital number, since it uses as much as digits as its factorization.

40436921088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47632 (or 47609 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 40436921088 in words is "forty billion, four hundred thirty-six million, nine hundred twenty-one thousand, eighty-eight".