2298720 has 48 divisors (see below), whose sum is σ = 7242480. Its totient is φ = 612864.

The previous prime is 2298719. The next prime is 2298731. The reversal of 2298720 is 278922.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×2298720² = 10568227276800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1915 + ... + 2874.

It is an arithmetic number, because the mean of its divisors is an integer number (150885).

2^2298720 is an apocalyptic number.

2298720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2298720 is an abundant number, since it is smaller than the sum of its proper divisors (4943760).

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

2298720 is a wasteful number, since it uses less digits than its factorization.

2298720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4807 (or 4799 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 2298720 is about 1516.1530265775. The cubic root of 2298720 is about 131.9761205656.

The spelling of 2298720 in words is "two million, two hundred ninety-eight thousand, seven hundred twenty".