4378431942 has 16 divisors (see below), whose sum is σ = 9729848880. Its totient is φ = 1459477296.

The previous prime is 4378431899. The next prime is 4378431947. The reversal of 4378431942 is 2491348734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4378431947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40540983 + ... + 40541090.

It is an arithmetic number, because the mean of its divisors is an integer number (608115555).

Almost surely, 2^4378431942 is an apocalyptic number.

4378431942 is an abundant number, since it is smaller than the sum of its proper divisors (5351416938).

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

4378431942 is a wasteful number, since it uses less digits than its factorization.

4378431942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81082084 (or 81082078 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 4378431942 is about 66169.7207338825. The cubic root of 4378431942 is about 1635.9607046454.

The spelling of 4378431942 in words is "four billion, three hundred seventy-eight million, four hundred thirty-one thousand, nine hundred forty-two".