290480 has 20 divisors (see below), whose sum is σ = 675552. Its totient is φ = 116160.

The previous prime is 290473. The next prime is 290489. The reversal of 290480 is 84092.

It is a tau number, because it is divible by the number of its divisors (20).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 290480.

It is not an unprimeable number, because it can be changed into a prime (290489) 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, 1736 + ... + 1895.

2²⁹⁰⁴⁸⁰ is an apocalyptic number.

290480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290480 is an abundant number, since it is smaller than the sum of its proper divisors (385072).

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

290480 is a wasteful number, since it uses less digits than its factorization.

290480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3644 (or 3638 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 290480 is about 538.9619652629. The cubic root of 290480 is about 66.2275585555.

The spelling of 290480 in words is "two hundred ninety thousand, four hundred eighty".