1890080 has 24 divisors (see below), whose sum is σ = 4465692. Its totient is φ = 755968.

The previous prime is 1890079. The next prime is 1890089. The reversal of 1890080 is 800981.

1890080 = T₈₆₇ + T₈₆₈ + ... + T₈₇₁.

It can be written as a sum of positive squares in 2 ways, for example, as 1860496 + 29584 = 1364^2 + 172^2 .

It is not an unprimeable number, because it can be changed into a prime (1890089) 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, 5747 + ... + 6066.

2^1890080 is an apocalyptic number.

1890080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1890080 is an abundant number, since it is smaller than the sum of its proper divisors (2575612).

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

1890080 is a wasteful number, since it uses less digits than its factorization.

1890080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11828 (or 11820 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 1890080 is about 1374.8018038976. The cubic root of 1890080 is about 123.6403034290.

The spelling of 1890080 in words is "one million, eight hundred ninety thousand, eighty".