1394138967 has 24 divisors (see below), whose sum is σ = 2015269200. Its totient is φ = 856896768.

The previous prime is 1394138959. The next prime is 1394138981. The reversal of 1394138967 is 7698314931.

It is not a de Polignac number, because 1394138967 - 2³ = 1394138959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394133967) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 814909 + ... + 816617.

It is an arithmetic number, because the mean of its divisors is an integer number (83969550).

Almost surely, 2^1394138967 is an apocalyptic number.

1394138967 is a deficient number, since it is larger than the sum of its proper divisors (621130233).

1394138967 is a wasteful number, since it uses less digits than its factorization.

1394138967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3347 (or 3334 counting only the distinct ones).

The product of its digits is 979776, while the sum is 51.

The square root of 1394138967 is about 37338.1703756357. The cubic root of 1394138967 is about 1117.1256459198.

The spelling of 1394138967 in words is "one billion, three hundred ninety-four million, one hundred thirty-eight thousand, nine hundred sixty-seven".