1421552 has 40 divisors (see below), whose sum is σ = 3093552. Its totient is φ = 627200.

The previous prime is 1421549. The next prime is 1421569. The reversal of 1421552 is 2551241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7118 + ... + 7314.

2^1421552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1546776).

1421552 is an abundant number, since it is smaller than the sum of its proper divisors (1672000).

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

1421552 is a wasteful number, since it uses less digits than its factorization.

1421552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 251 counting only the distinct ones).

The product of its digits is 400, while the sum is 20.

The square root of 1421552 is about 1192.2885556777. The cubic root of 1421552 is about 112.4400207027.

Adding to 1421552 its reverse (2551241), we get a palindrome (3972793).

The spelling of 1421552 in words is "one million, four hundred twenty-one thousand, five hundred fifty-two".