3996784542 has 16 divisors (see below), whose sum is σ = 8012120832. Its totient is φ = 1329169560.

The previous prime is 3996784531. The next prime is 3996784559. The reversal of 3996784542 is 2454876993.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 770188 + ... + 775359.

It is an arithmetic number, because the mean of its divisors is an integer number (500757552).

Almost surely, 2^3996784542 is an apocalyptic number.

3996784542 is an abundant number, since it is smaller than the sum of its proper divisors (4015336290).

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

3996784542 is a wasteful number, since it uses less digits than its factorization.

3996784542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545983.

The product of its digits is 13063680, while the sum is 57.

The square root of 3996784542 is about 63220.1276651669. The cubic root of 3996784542 is about 1586.9755861579.

The spelling of 3996784542 in words is "three billion, nine hundred ninety-six million, seven hundred eighty-four thousand, five hundred forty-two".