1632620 has 48 divisors (see below), whose sum is σ = 3852576. Its totient is φ = 576000.

The previous prime is 1632619. The next prime is 1632623. The reversal of 1632620 is 262361.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1632592 and 1632601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1632623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8930 + ... + 9110.

It is an arithmetic number, because the mean of its divisors is an integer number (80262).

2^1632620 is an apocalyptic number.

1632620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1632620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1926288).

1632620 is an abundant number, since it is smaller than the sum of its proper divisors (2219956).

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

1632620 is a wasteful number, since it uses less digits than its factorization.

1632620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1632620 is about 1277.7401926839. The cubic root of 1632620 is about 117.7502137413.

Adding to 1632620 its reverse (262361), we get a palindrome (1894981).

The spelling of 1632620 in words is "one million, six hundred thirty-two thousand, six hundred twenty".