290534536 has 8 divisors (see below), whose sum is σ = 544752270. Its totient is φ = 145267264.

The previous prime is 290534533. The next prime is 290534561. The reversal of 290534536 is 635435092.

It can be written as a sum of positive squares in only one way, i.e., 285272100 + 5262436 = 16890^2 + 2294^2 .

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

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 290534495 and 290534504.

It is not an unprimeable number, because it can be changed into a prime (290534533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18158401 + ... + 18158416.

Almost surely, 2^290534536 is an apocalyptic number.

It is an amenable number.

290534536 is a deficient number, since it is larger than the sum of its proper divisors (254217734).

290534536 is a wasteful number, since it uses less digits than its factorization.

290534536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36316823 (or 36316819 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 37.

The square root of 290534536 is about 17045.0736578051. The cubic root of 290534536 is about 662.3170291438.

The spelling of 290534536 in words is "two hundred ninety million, five hundred thirty-four thousand, five hundred thirty-six".