290542 has 8 divisors (see below), whose sum is σ = 498096. Its totient is φ = 124512.

The previous prime is 290539. The next prime is 290557. The reversal of 290542 is 245092.

It is a happy number.

290542 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10363 + ... + 10390.

It is an arithmetic number, because the mean of its divisors is an integer number (62262).

2²⁹⁰⁵⁴² is an apocalyptic number.

290542 is a deficient number, since it is larger than the sum of its proper divisors (207554).

290542 is a wasteful number, since it uses less digits than its factorization.

290542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20762.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 290542 is about 539.0194801675. The cubic root of 290542 is about 66.2322700864.

The spelling of 290542 in words is "two hundred ninety thousand, five hundred forty-two".