1378604 has 12 divisors (see below), whose sum is σ = 2464224. Its totient is φ = 674544.

The previous prime is 1378603. The next prime is 1378613. The reversal of 1378604 is 4068731.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1378603) 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, 3479 + ... + 3854.

It is an arithmetic number, because the mean of its divisors is an integer number (205352).

2^1378604 is an apocalyptic number.

It is an amenable number.

1378604 is a deficient number, since it is larger than the sum of its proper divisors (1085620).

1378604 is a wasteful number, since it uses less digits than its factorization.

1378604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7384 (or 7382 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1378604 is about 1174.1396850460. The cubic root of 1378604 is about 111.2960740018.

The spelling of 1378604 in words is "one million, three hundred seventy-eight thousand, six hundred four".