1376864 has 24 divisors (see below), whose sum is σ = 2871288. Its totient is φ = 647680.

The previous prime is 1376839. The next prime is 1376897. The reversal of 1376864 is 4686731.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722 + ... + 1809.

It is an arithmetic number, because the mean of its divisors is an integer number (119637).

2^1376864 is an apocalyptic number.

It is an amenable number.

1376864 is an abundant number, since it is smaller than the sum of its proper divisors (1494424).

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

1376864 is a wasteful number, since it uses less digits than its factorization.

1376864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2558 (or 2550 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 1376864 is about 1173.3984830398. The cubic root of 1376864 is about 111.2492303107.

The spelling of 1376864 in words is "one million, three hundred seventy-six thousand, eight hundred sixty-four".