632278 has 4 divisors (see below), whose sum is σ = 948420. Its totient is φ = 316138.

The previous prime is 632273. The next prime is 632297. The reversal of 632278 is 872236.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (632273) by changing a digit.

632278 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 as a sum of consecutive naturals, namely, 158068 + ... + 158071.

It is an arithmetic number, because the mean of its divisors is an integer number (237105).

2⁶³²²⁷⁸ is an apocalyptic number.

632278 is a deficient number, since it is larger than the sum of its proper divisors (316142).

632278 is a wasteful number, since it uses less digits than its factorization.

632278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316141.

The product of its digits is 4032, while the sum is 28.

The square root of 632278 is about 795.1591035761. The cubic root of 632278 is about 85.8293895403.

Subtracting from 632278 its sum of digits (28), we obtain a triangular number (632250 = T₁₁₂₄).

It can be divided in two parts, 6322 and 78, that added together give a square (6400 = 80²).

The spelling of 632278 in words is "six hundred thirty-two thousand, two hundred seventy-eight".