290283426 has 56 divisors (see below), whose sum is σ = 670607964. Its totient is φ = 94128480.

The previous prime is 290283419. The next prime is 290283431. The reversal of 290283426 is 624382092.

290283426 is a `hidden beast` number, since 290 + 28 + 342 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 284765625 + 5517801 = 16875^2 + 2349^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 51256 + ... + 56636.

Almost surely, 2^290283426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 290283426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (335303982).

290283426 is an abundant number, since it is smaller than the sum of its proper divisors (380324538).

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

290283426 is an equidigital number, since it uses as much as digits as its factorization.

290283426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5438 (or 5423 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 290283426 is about 17037.7060075586. The cubic root of 290283426 is about 662.1261598472.

The spelling of 290283426 in words is "two hundred ninety million, two hundred eighty-three thousand, four hundred twenty-six".