1878425 has 12 divisors (see below), whose sum is σ = 2346576. Its totient is φ = 1491600.

The previous prime is 1878421. The next prime is 1878431. The reversal of 1878425 is 5248781.

It is not a de Polignac number, because 1878425 - 2² = 1878421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1878421) 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 11 ways as a sum of consecutive naturals, for example, 5510 + ... + 5840.

It is an arithmetic number, because the mean of its divisors is an integer number (195548).

2^1878425 is an apocalyptic number.

It is an amenable number.

1878425 is a deficient number, since it is larger than the sum of its proper divisors (468151).

1878425 is a wasteful number, since it uses less digits than its factorization.

1878425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 563 counting only the distinct ones).

The product of its digits is 17920, while the sum is 35.

The square root of 1878425 is about 1370.5564563344. The cubic root of 1878425 is about 123.3856405025.

The spelling of 1878425 in words is "one million, eight hundred seventy-eight thousand, four hundred twenty-five".