2246640 has 160 divisors (see below), whose sum is σ = 8142336. Its totient is φ = 506880.

The previous prime is 2246633. The next prime is 2246641. The reversal of 2246640 is 466422.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2246640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2246641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60702 + ... + 60738.

2^2246640 is an apocalyptic number.

2246640 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 2246640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4071168).

2246640 is an abundant number, since it is smaller than the sum of its proper divisors (5895696).

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

2246640 is a wasteful number, since it uses less digits than its factorization.

2246640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2246640 is about 1498.8795815542. The cubic root of 2246640 is about 130.9718098734.

It can be divided in two parts, 2 and 246640, that added together give a palindrome (246642).

The spelling of 2246640 in words is "two million, two hundred forty-six thousand, six hundred forty".