40239440604 has 96 divisors (see below), whose sum is σ = 113935449600. Its totient is φ = 12180170880.

The previous prime is 40239440597. The next prime is 40239440609. The reversal of 40239440604 is 40604493204.

40239440604 is a `hidden beast` number, since 4 + 0 + 2 + 3 + 9 + 4 + 40 + 604 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40239440609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1073344 + ... + 1110200.

It is an arithmetic number, because the mean of its divisors is an integer number (1186827600).

Almost surely, 2^40239440604 is an apocalyptic number.

40239440604 is a gapful number since it is divisible by the number (44) 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 40239440604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56967724800).

40239440604 is an abundant number, since it is smaller than the sum of its proper divisors (73696008996).

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

40239440604 is a wasteful number, since it uses less digits than its factorization.

40239440604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37800 (or 37792 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 40239440604 in words is "forty billion, two hundred thirty-nine million, four hundred forty thousand, six hundred four".