1878804 has 18 divisors (see below), whose sum is σ = 4749290. Its totient is φ = 626256.

The previous prime is 1878803. The next prime is 1878827. The reversal of 1878804 is 4088781.

It can be written as a sum of positive squares in only one way, i.e., 980100 + 898704 = 990^2 + 948^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 52189 = 1878804 / (1 + 8 + 7 + 8 + 8 + 0 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1878803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26059 + ... + 26130.

2^1878804 is an apocalyptic number.

It is an amenable number.

1878804 is an abundant number, since it is smaller than the sum of its proper divisors (2870486).

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

1878804 is a wasteful number, since it uses less digits than its factorization.

1878804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52199 (or 52194 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 1878804 is about 1370.6947143693. The cubic root of 1878804 is about 123.3939382365.

The spelling of 1878804 in words is "one million, eight hundred seventy-eight thousand, eight hundred four".