634270 has 64 divisors (see below), whose sum is σ = 1524096. Its totient is φ = 184320.

The previous prime is 634267. The next prime is 634273. The reversal of 634270 is 72436.

634270 = T₁₅₅ + T₁₅₆ + ... + T₁₉₅.

It is an interprime number because it is at equal distance from previous prime (634267) and next prime (634273).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15450 + ... + 15490.

It is an arithmetic number, because the mean of its divisors is an integer number (23814).

2⁶³⁴²⁷⁰ is an apocalyptic number.

634270 is an abundant number, since it is smaller than the sum of its proper divisors (889826).

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

634270 is a wasteful number, since it uses less digits than its factorization.

634270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 634270 is about 796.4106980698. The cubic root of 634270 is about 85.9194305811.

The spelling of 634270 in words is "six hundred thirty-four thousand, two hundred seventy".