290135224 has 8 divisors (see below), whose sum is σ = 544003560. Its totient is φ = 145067608.

The previous prime is 290135213. The next prime is 290135239. The reversal of 290135224 is 422531092.

290135224 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 290135192 and 290135201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18133444 + ... + 18133459.

It is an arithmetic number, because the mean of its divisors is an integer number (68000445).

Almost surely, 2^290135224 is an apocalyptic number.

It is an amenable number.

290135224 is a deficient number, since it is larger than the sum of its proper divisors (253868336).

290135224 is a wasteful number, since it uses less digits than its factorization.

290135224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36266909 (or 36266905 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 290135224 is about 17033.3562165534. The cubic root of 290135224 is about 662.0134595037.

The spelling of 290135224 in words is "two hundred ninety million, one hundred thirty-five thousand, two hundred twenty-four".