2647242 has 48 divisors (see below), whose sum is σ = 6420960. Its totient is φ = 812592.

The previous prime is 2647193. The next prime is 2647243. The reversal of 2647242 is 2427462.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (2647243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6109 + ... + 6527.

It is an arithmetic number, because the mean of its divisors is an integer number (133770).

2^2647242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2647242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3210480).

2647242 is an abundant number, since it is smaller than the sum of its proper divisors (3773718).

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

2647242 is a wasteful number, since it uses less digits than its factorization.

2647242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449 (or 437 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 2647242 is about 1627.0347261199. The cubic root of 2647242 is about 138.3347262001.

The spelling of 2647242 in words is "two million, six hundred forty-seven thousand, two hundred forty-two".