1521632 has 24 divisors (see below), whose sum is σ = 3424176. Its totient is φ = 652032.

The previous prime is 1521629. The next prime is 1521643. The reversal of 1521632 is 2361251.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3173 + ... + 3620.

It is an arithmetic number, because the mean of its divisors is an integer number (142674).

2^1521632 is an apocalyptic number.

It is an amenable number.

1521632 is an abundant number, since it is smaller than the sum of its proper divisors (1902544).

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

1521632 is an equidigital number, since it uses as much as digits as its factorization.

1521632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6810 (or 6802 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 1521632 is about 1233.5444864292. The cubic root of 1521632 is about 115.0190768605.

Adding to 1521632 its reverse (2361251), we get a palindrome (3882883).

The spelling of 1521632 in words is "one million, five hundred twenty-one thousand, six hundred thirty-two".