1396140367 has 4 divisors (see below), whose sum is σ = 1419027976. Its totient is φ = 1373252760.

The previous prime is 1396140353. The next prime is 1396140371. The reversal of 1396140367 is 7630416931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7630416931 = 71 ⋅107470661.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1396140367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396140167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11443713 + ... + 11443834.

It is an arithmetic number, because the mean of its divisors is an integer number (354756994).

Almost surely, 2^1396140367 is an apocalyptic number.

1396140367 is a deficient number, since it is larger than the sum of its proper divisors (22887609).

1396140367 is an equidigital number, since it uses as much as digits as its factorization.

1396140367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22887608.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 1396140367 is about 37364.9617556341. The cubic root of 1396140367 is about 1117.6599652559.

The spelling of 1396140367 in words is "one billion, three hundred ninety-six million, one hundred forty thousand, three hundred sixty-seven".