290620 has 24 divisors (see below), whose sum is σ = 666288. Its totient is φ = 105600.

The previous prime is 290617. The next prime is 290621. The reversal of 290620 is 26092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441 + ... + 880.

It is an arithmetic number, because the mean of its divisors is an integer number (27762).

2²⁹⁰⁶²⁰ is an apocalyptic number.

290620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

290620 is an abundant number, since it is smaller than the sum of its proper divisors (375668).

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

290620 is a wasteful number, since it uses less digits than its factorization.

290620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341 (or 1339 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 290620 is about 539.0918289123. The cubic root of 290620 is about 66.2381965444.

It can be divided in two parts, 2906 and 20, that added together give a triangular number (2926 = T₇₆).

The spelling of 290620 in words is "two hundred ninety thousand, six hundred twenty".