2421552 has 40 divisors (see below), whose sum is σ = 7150336. Its totient is φ = 691776.

The previous prime is 2421547. The next prime is 2421553. The reversal of 2421552 is 2551242.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (2421553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3268 + ... + 3939.

2^2421552 is an apocalyptic number.

It is an amenable number.

2421552 is an abundant number, since it is smaller than the sum of its proper divisors (4728784).

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

2421552 is a wasteful number, since it uses less digits than its factorization.

2421552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7225 (or 7219 counting only the distinct ones).

The product of its digits is 800, while the sum is 21.

The square root of 2421552 is about 1556.1336703510. The cubic root of 2421552 is about 134.2861635286.

Adding to 2421552 its reverse (2551242), we get a palindrome (4972794).

The spelling of 2421552 in words is "two million, four hundred twenty-one thousand, five hundred fifty-two".