2152242 has 12 divisors (see below), whose sum is σ = 4663230. Its totient is φ = 717408.

The previous prime is 2152231. The next prime is 2152247. The reversal of 2152242 is 2422512.

It can be written as a sum of positive squares in only one way, i.e., 1461681 + 690561 = 1209^2 + 831^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 119569 = 2152242 / (2 + 1 + 5 + 2 + 2 + 4 + 2).

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59767 + ... + 59802.

2^2152242 is an apocalyptic number.

2152242 is an abundant number, since it is smaller than the sum of its proper divisors (2510988).

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

2152242 is a wasteful number, since it uses less digits than its factorization.

2152242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119577 (or 119574 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 2152242 is about 1467.0521463125. The cubic root of 2152242 is about 129.1111355237. Note that the first 4 decimals are identical.

Adding to 2152242 its reverse (2422512), we get a palindrome (4574754).

The spelling of 2152242 in words is "two million, one hundred fifty-two thousand, two hundred forty-two".