290028852 has 18 divisors (see below), whose sum is σ = 733128578. Its totient is φ = 96676272.

The previous prime is 290028821. The next prime is 290028889. The reversal of 290028852 is 258820092.

It can be written as a sum of positive squares in only one way, i.e., 265168656 + 24860196 = 16284^2 + 4986^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 8056357 = 290028852 / (2 + 9 + 0 + 0 + 2 + 8 + 8 + 5 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4028143 + ... + 4028214.

Almost surely, 2^290028852 is an apocalyptic number.

It is an amenable number.

290028852 is an abundant number, since it is smaller than the sum of its proper divisors (443099726).

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

290028852 is a wasteful number, since it uses less digits than its factorization.

290028852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8056367 (or 8056362 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 290028852 is about 17030.2334687461. The cubic root of 290028852 is about 661.9325451603.

The spelling of 290028852 in words is "two hundred ninety million, twenty-eight thousand, eight hundred fifty-two".