1880840 has 32 divisors (see below), whose sum is σ = 4558680. Its totient is φ = 694272.

The previous prime is 1880839. The next prime is 1880843. The reversal of 1880840 is 480881.

It can be written as a sum of positive squares in 4 ways, for example, as 521284 + 1359556 = 722^2 + 1166^2 .

It is not an unprimeable number, because it can be changed into a prime (1880843) 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, 1289 + ... + 2328.

2^1880840 is an apocalyptic number.

1880840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1880840 is an abundant number, since it is smaller than the sum of its proper divisors (2677840).

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

1880840 is a wasteful number, since it uses less digits than its factorization.

1880840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3641 (or 3637 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 29.

The square root of 1880840 is about 1371.4372023538. The cubic root of 1880840 is about 123.4384948379.

The spelling of 1880840 in words is "one million, eight hundred eighty thousand, eight hundred forty".