290030449 has 2 divisors, whose sum is σ = 290030450. Its totient is φ = 290030448.

The previous prime is 290030443. The next prime is 290030473. The reversal of 290030449 is 944030092.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221057424 + 68973025 = 14868^2 + 8305^2 .

It is a cyclic number.

It is not a de Polignac number, because 290030449 - 2⁹ = 290029937 is a prime.

It is a super-2 number, since 2×290030449² = 168235322694283202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 290030449.

It is not a weakly prime, because it can be changed into another prime (290030443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145015224 + 145015225.

It is an arithmetic number, because the mean of its divisors is an integer number (145015225).

Almost surely, 2^290030449 is an apocalyptic number.

It is an amenable number.

290030449 is a deficient number, since it is larger than the sum of its proper divisors (1).

290030449 is an equidigital number, since it uses as much as digits as its factorization.

290030449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 290030449 is about 17030.2803558838. The cubic root of 290030449 is about 661.9337601019.

The spelling of 290030449 in words is "two hundred ninety million, thirty thousand, four hundred forty-nine".