1873280 has 32 divisors (see below), whose sum is σ = 4479840. Its totient is φ = 749056.

The previous prime is 1873271. The next prime is 1873283. The reversal of 1873280 is 823781.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1873283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 824 + ... + 2103.

It is an arithmetic number, because the mean of its divisors is an integer number (139995).

2^1873280 is an apocalyptic number.

1873280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1873280 is an abundant number, since it is smaller than the sum of its proper divisors (2606560).

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

1873280 is an equidigital number, since it uses as much as digits as its factorization.

1873280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946 (or 2934 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 1873280 is about 1368.6781944635. The cubic root of 1873280 is about 123.2728865387.

The spelling of 1873280 in words is "one million, eight hundred seventy-three thousand, two hundred eighty".