634228374 has 48 divisors (see below), whose sum is σ = 1386400176. Its totient is φ = 192279360.

The previous prime is 634228337. The next prime is 634228391. The reversal of 634228374 is 473822436.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 392392 + ... + 394004.

It is an arithmetic number, because the mean of its divisors is an integer number (28883337).

Almost surely, 2^634228374 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634228374, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (693200088).

634228374 is an abundant number, since it is smaller than the sum of its proper divisors (752171802).

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

634228374 is a wasteful number, since it uses less digits than its factorization.

634228374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773 (or 1702 counting only the distinct ones).

The product of its digits is 193536, while the sum is 39.

The square root of 634228374 is about 25183.8911608194. The cubic root of 634228374 is about 859.1755096073.

It can be divided in two parts, 6342 and 28374, that added together give a triangular number (34716 = T₂₆₃).

The spelling of 634228374 in words is "six hundred thirty-four million, two hundred twenty-eight thousand, three hundred seventy-four".