632730 has 64 divisors (see below), whose sum is σ = 1824768. Its totient is φ = 137280.

The previous prime is 632717. The next prime is 632743. The reversal of 632730 is 37236.

It is an interprime number because it is at equal distance from previous prime (632717) and next prime (632743).

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

It is a Curzon number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 632697 and 632706.

It is an unprimeable number.

632730 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 31 ways as a sum of consecutive naturals, for example, 4765 + ... + 4895.

It is an arithmetic number, because the mean of its divisors is an integer number (28512).

2⁶³²⁷³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 632730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (912384).

632730 is an abundant number, since it is smaller than the sum of its proper divisors (1192038).

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

632730 is a wasteful number, since it uses less digits than its factorization.

632730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171.

The product of its (nonzero) digits is 756, while the sum is 21.

The square root of 632730 is about 795.4432726474. The cubic root of 632730 is about 85.8498371089.

Adding to 632730 its reverse (37236), we get a palindrome (669966).

The spelling of 632730 in words is "six hundred thirty-two thousand, seven hundred thirty".