1878402 has 16 divisors (see below), whose sum is σ = 3837312. Its totient is φ = 612720.

The previous prime is 1878389. The next prime is 1878403. The reversal of 1878402 is 2048781.

It is a self number, because there is not a number n which added to its sum of digits gives 1878402.

It is not an unprimeable number, because it can be changed into a prime (1878403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3049 + ... + 3612.

It is an arithmetic number, because the mean of its divisors is an integer number (239832).

2^1878402 is an apocalyptic number.

1878402 is an abundant number, since it is smaller than the sum of its proper divisors (1958910).

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

1878402 is a wasteful number, since it uses less digits than its factorization.

1878402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6713.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 1878402 is about 1370.5480655563. The cubic root of 1878402 is about 123.3851369101.

The spelling of 1878402 in words is "one million, eight hundred seventy-eight thousand, four hundred two".