632791378 has 8 divisors (see below), whose sum is σ = 955557900. Its totient is φ = 314272080.

The previous prime is 632791351. The next prime is 632791399. The reversal of 632791378 is 873197236.

It is a happy number.

632791378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 505485289 + 127306089 = 22483^2 + 11283^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×632791378² = 800849856142277768, which contains 22 as substring.

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, 1061433 + ... + 1062028.

Almost surely, 2^632791378 is an apocalyptic number.

632791378 is a deficient number, since it is larger than the sum of its proper divisors (322766522).

632791378 is a wasteful number, since it uses less digits than its factorization.

632791378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2123612.

The product of its digits is 381024, while the sum is 46.

The square root of 632791378 is about 25155.3449191221. The cubic root of 632791378 is about 858.5261297478.

The spelling of 632791378 in words is "six hundred thirty-two million, seven hundred ninety-one thousand, three hundred seventy-eight".