290140 has 24 divisors (see below), whose sum is σ = 619920. Its totient is φ = 114048.

The previous prime is 290137. The next prime is 290141. The reversal of 290140 is 41092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290141) 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, 1699 + ... + 1861.

It is an arithmetic number, because the mean of its divisors is an integer number (25830).

2²⁹⁰¹⁴⁰ is an apocalyptic number.

290140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290140 is an abundant number, since it is smaller than the sum of its proper divisors (329780).

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

290140 is a wasteful number, since it uses less digits than its factorization.

290140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 259 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 290140 is about 538.6464517659. The cubic root of 290140 is about 66.2017092016.

The spelling of 290140 in words is "two hundred ninety thousand, one hundred forty".