3994767438 has 16 divisors (see below), whose sum is σ = 8017769856. Its totient is φ = 1326883320.

The previous prime is 3994767437. The next prime is 3994767521. The reversal of 3994767438 is 8347674993.

3994767438 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3994767431) 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, 1174618 + ... + 1178013.

It is an arithmetic number, because the mean of its divisors is an integer number (501110616).

Almost surely, 2^3994767438 is an apocalyptic number.

3994767438 is an abundant number, since it is smaller than the sum of its proper divisors (4023002418).

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

3994767438 is a wasteful number, since it uses less digits than its factorization.

3994767438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352919.

The product of its digits is 27433728, while the sum is 60.

The square root of 3994767438 is about 63204.1726312433. The cubic root of 3994767438 is about 1586.7085687233.

The spelling of 3994767438 in words is "three billion, nine hundred ninety-four million, seven hundred sixty-seven thousand, four hundred thirty-eight".