1387963338 has 16 divisors (see below), whose sum is σ = 2922028320. Its totient is φ = 438304176.

The previous prime is 1387963321. The next prime is 1387963349. The reversal of 1387963338 is 8333697831.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6087445 + ... + 6087672.

It is an arithmetic number, because the mean of its divisors is an integer number (182626770).

Almost surely, 2^1387963338 is an apocalyptic number.

1387963338 is an abundant number, since it is smaller than the sum of its proper divisors (1534064982).

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

1387963338 is a wasteful number, since it uses less digits than its factorization.

1387963338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12175141.

The product of its digits is 1959552, while the sum is 51.

The square root of 1387963338 is about 37255.3799873253. The cubic root of 1387963338 is about 1115.4736906924.

The spelling of 1387963338 in words is "one billion, three hundred eighty-seven million, nine hundred sixty-three thousand, three hundred thirty-eight".