1392968378 has 16 divisors (see below), whose sum is σ = 2152859904. Its totient is φ = 675470160.

The previous prime is 1392968377. The next prime is 1392968393. The reversal of 1392968378 is 8738692931.

It is not an unprimeable number, because it can be changed into a prime (1392968377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7250 + ... + 53277.

It is an arithmetic number, because the mean of its divisors is an integer number (134553744).

Almost surely, 2^1392968378 is an apocalyptic number.

1392968378 is a deficient number, since it is larger than the sum of its proper divisors (759891526).

1392968378 is a wasteful number, since it uses less digits than its factorization.

1392968378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60877.

The product of its digits is 3919104, while the sum is 56.

The square root of 1392968378 is about 37322.4915834943. The cubic root of 1392968378 is about 1116.8128934619.

The spelling of 1392968378 in words is "one billion, three hundred ninety-two million, nine hundred sixty-eight thousand, three hundred seventy-eight".