2249520 has 160 divisors (see below), whose sum is σ = 8666112. Its totient is φ = 470016.

The previous prime is 2249483. The next prime is 2249537. The reversal of 2249520 is 259422.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21789 + ... + 21891.

2^2249520 is an apocalyptic number.

2249520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2249520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4333056).

2249520 is an abundant number, since it is smaller than the sum of its proper divisors (6416592).

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

2249520 is a wasteful number, since it uses less digits than its factorization.

2249520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2249520 is about 1499.8399914658. The cubic root of 2249520 is about 131.0277508561.

The spelling of 2249520 in words is "two million, two hundred forty-nine thousand, five hundred twenty".