1376004 has 24 divisors (see below), whose sum is σ = 3669568. Its totient is φ = 393120.

The previous prime is 1376003. The next prime is 1376009. The reversal of 1376004 is 4006731.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1376003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8107 + ... + 8274.

2^1376004 is an apocalyptic number.

1376004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1376004 is an abundant number, since it is smaller than the sum of its proper divisors (2293564).

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

1376004 is a wasteful number, since it uses less digits than its factorization.

1376004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16395 (or 16393 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 1376004 is about 1173.0319688738. The cubic root of 1376004 is about 111.2260631074.

The spelling of 1376004 in words is "one million, three hundred seventy-six thousand, four".