1382997378 has 16 divisors (see below), whose sum is σ = 3161136960. Its totient is φ = 395142096.

The previous prime is 1382997367. The next prime is 1382997401. The reversal of 1382997378 is 8737992831.

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, 16464213 + ... + 16464296.

It is an arithmetic number, because the mean of its divisors is an integer number (197571060).

Almost surely, 2^1382997378 is an apocalyptic number.

1382997378 is an abundant number, since it is smaller than the sum of its proper divisors (1778139582).

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

1382997378 is a wasteful number, since it uses less digits than its factorization.

1382997378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32928521.

The product of its digits is 4572288, while the sum is 57.

The square root of 1382997378 is about 37188.6727109210. The cubic root of 1382997378 is about 1114.1417589414.

The spelling of 1382997378 in words is "one billion, three hundred eighty-two million, nine hundred ninety-seven thousand, three hundred seventy-eight".