3894138399 has 8 divisors (see below), whose sum is σ = 5193169920. Its totient is φ = 2595599576.

The previous prime is 3894138397. The next prime is 3894138403. The reversal of 3894138399 is 9938314983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3894138399 - 2¹ = 3894138397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3894138397) 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, 104319 + ... + 136640.

It is an arithmetic number, because the mean of its divisors is an integer number (649146240).

Almost surely, 2^3894138399 is an apocalyptic number.

3894138399 is a deficient number, since it is larger than the sum of its proper divisors (1299031521).

3894138399 is a wasteful number, since it uses less digits than its factorization.

3894138399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246349.

The product of its digits is 5038848, while the sum is 57.

The square root of 3894138399 is about 62403.0319696087. The cubic root of 3894138399 is about 1573.2719300235.

The spelling of 3894138399 in words is "three billion, eight hundred ninety-four million, one hundred thirty-eight thousand, three hundred ninety-nine".