39999996 has 36 divisors (see below), whose sum is σ = 101556000. Its totient is φ = 13274688.

The previous prime is 39999983. The next prime is 40000003. The reversal of 39999996 is 69999993.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

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, 6280 + ... + 10928.

It is an arithmetic number, because the mean of its divisors is an integer number (2821000).

Almost surely, 2^39999996 is an apocalyptic number.

39999996 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

39999996 is an abundant number, since it is smaller than the sum of its proper divisors (61556004).

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

39999996 is a wasteful number, since it uses less digits than its factorization.

39999996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4898 (or 4893 counting only the distinct ones).

The product of its digits is 9565938, while the sum is 63.

The square root of 39999996 is about 6324.5550041090. Note that the first 3 decimals coincide. The cubic root of 39999996 is about 341.9951779355.

It can be divided in two parts, 3 and 9999996, that added together give a palindrome (9999999).

The spelling of 39999996 in words is "thirty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-six".