40324432320 has 84 divisors (see below), whose sum is σ = 138699255240. Its totient is φ = 10753181184.

The previous prime is 40324432319. The next prime is 40324432331. The reversal of 40324432320 is 2323442304.

40324432320 is a `hidden beast` number, since 403 + 24 + 4 + 3 + 232 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6997890 + ... + 7003649.

It is an arithmetic number, because the mean of its divisors is an integer number (1651181610).

Almost surely, 2^40324432320 is an apocalyptic number.

40324432320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40324432320 is an abundant number, since it is smaller than the sum of its proper divisors (98374822920).

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

40324432320 is a wasteful number, since it uses less digits than its factorization.

40324432320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14001562 (or 14001549 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 40324432320 its reverse (2323442304), we get a palindrome (42647874624).

The spelling of 40324432320 in words is "forty billion, three hundred twenty-four million, four hundred thirty-two thousand, three hundred twenty".