2290398 has 16 divisors (see below), whose sum is σ = 4997376. Its totient is φ = 694040.

The previous prime is 2290369. The next prime is 2290403. The reversal of 2290398 is 8930922.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 7 ways as a sum of consecutive naturals, for example, 17286 + ... + 17417.

It is an arithmetic number, because the mean of its divisors is an integer number (312336).

2^2290398 is an apocalyptic number.

2290398 is an abundant number, since it is smaller than the sum of its proper divisors (2706978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2290398 is a wasteful number, since it uses less digits than its factorization.

2290398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34719.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 2290398 is about 1513.4060922304. The cubic root of 2290398 is about 131.8166646746.

The spelling of 2290398 in words is "two million, two hundred ninety thousand, three hundred ninety-eight".