3838815478 has 8 divisors (see below), whose sum is σ = 5794900272. Its totient is φ = 1907182056.

The previous prime is 3838815457. The next prime is 3838815553. The reversal of 3838815478 is 8745188383.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6112450 + ... + 6113077.

It is an arithmetic number, because the mean of its divisors is an integer number (724362534).

Almost surely, 2^3838815478 is an apocalyptic number.

3838815478 is a deficient number, since it is larger than the sum of its proper divisors (1956084794).

3838815478 is a wasteful number, since it uses less digits than its factorization.

3838815478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12225686.

The product of its digits is 5160960, while the sum is 55.

The square root of 3838815478 is about 61958.1752313607. The cubic root of 3838815478 is about 1565.7860243930.

The spelling of 3838815478 in words is "three billion, eight hundred thirty-eight million, eight hundred fifteen thousand, four hundred seventy-eight".