290049236 has 12 divisors (see below), whose sum is σ = 512514912. Its totient is φ = 143616408.

The previous prime is 290049203. The next prime is 290049241. The reversal of 290049236 is 632940092.

It is a junction number, because it is equal to n+sod(n) for n = 290049196 and 290049205.

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 in 3 ways as a sum of consecutive naturals, for example, 351590 + ... + 352413.

It is an arithmetic number, because the mean of its divisors is an integer number (42709576).

Almost surely, 2^290049236 is an apocalyptic number.

It is an amenable number.

290049236 is a deficient number, since it is larger than the sum of its proper divisors (222465676).

290049236 is a wasteful number, since it uses less digits than its factorization.

290049236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704110 (or 704108 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 290049236 is about 17030.8319233090. The cubic root of 290049236 is about 661.9480522576.

The spelling of 290049236 in words is "two hundred ninety million, forty-nine thousand, two hundred thirty-six".