3996539406 has 32 divisors (see below), whose sum is σ = 9167692800. Its totient is φ = 1289205720.

The previous prime is 3996539383. The next prime is 3996539413. The reversal of 3996539406 is 6049356993.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1192036 + ... + 1195383.

It is an arithmetic number, because the mean of its divisors is an integer number (286490400).

Almost surely, 2^3996539406 is an apocalyptic number.

3996539406 is an abundant number, since it is smaller than the sum of its proper divisors (5171153394).

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

3996539406 is a wasteful number, since it uses less digits than its factorization.

3996539406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387461 (or 2387455 counting only the distinct ones).

The product of its (nonzero) digits is 4723920, while the sum is 54.

The square root of 3996539406 is about 63218.1888857946. The cubic root of 3996539406 is about 1586.9431406760.

The spelling of 3996539406 in words is "three billion, nine hundred ninety-six million, five hundred thirty-nine thousand, four hundred six".