20290298 has 8 divisors (see below), whose sum is σ = 34783392. Its totient is φ = 8695836.

The previous prime is 20290297. The next prime is 20290307. The reversal of 20290298 is 89209202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20290297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724640 + ... + 724667.

It is an arithmetic number, because the mean of its divisors is an integer number (4347924).

Almost surely, 2^20290298 is an apocalyptic number.

20290298 is a deficient number, since it is larger than the sum of its proper divisors (14493094).

20290298 is a wasteful number, since it uses less digits than its factorization.

20290298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449316.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 20290298 is about 4504.4753301578. The cubic root of 20290298 is about 272.7487748636.

The spelling of 20290298 in words is "twenty million, two hundred ninety thousand, two hundred ninety-eight".