1878272 has 72 divisors (see below), whose sum is σ = 4415040. Its totient is φ = 788480.

The previous prime is 1878263. The next prime is 1878277. The reversal of 1878272 is 2728781.

It is not an unprimeable number, because it can be changed into a prime (1878277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64754 + ... + 64782.

It is an arithmetic number, because the mean of its divisors is an integer number (61320).

2^1878272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1878272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2207520).

1878272 is an abundant number, since it is smaller than the sum of its proper divisors (2536768).

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

1878272 is a wasteful number, since it uses less digits than its factorization.

1878272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 65 counting only the distinct ones).

The product of its digits is 12544, while the sum is 35.

The square root of 1878272 is about 1370.5006384530. The cubic root of 1878272 is about 123.3822904414.

The spelling of 1878272 in words is "one million, eight hundred seventy-eight thousand, two hundred seventy-two".