1338367815 has 48 divisors (see below), whose sum is σ = 2424996288. Its totient is φ = 681550848.

The previous prime is 1338367801. The next prime is 1338367831. The reversal of 1338367815 is 5187638331.

It is not a de Polignac number, because 1338367815 - 2²⁰ = 1337319239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1031247 + ... + 1032543.

It is an arithmetic number, because the mean of its divisors is an integer number (50520756).

Almost surely, 2^1338367815 is an apocalyptic number.

1338367815 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1338367815 is a deficient number, since it is larger than the sum of its proper divisors (1086628473).

1338367815 is a wasteful number, since it uses less digits than its factorization.

1338367815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328 (or 2325 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 1338367815 is about 36583.7096943435. The cubic root of 1338367815 is about 1102.0259674075.

The spelling of 1338367815 in words is "one billion, three hundred thirty-eight million, three hundred sixty-seven thousand, eight hundred fifteen".