634003381 has 8 divisors (see below), whose sum is σ = 728042400. Its totient is φ = 546031440.

The previous prime is 634003373. The next prime is 634003421. The reversal of 634003381 is 183300436.

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

It is a cyclic number.

It is not a de Polignac number, because 634003381 - 2³ = 634003373 is a prime.

It is a super-2 number, since 2×634003381² = 803920574238862322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634003301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1516546 + ... + 1516963.

It is an arithmetic number, because the mean of its divisors is an integer number (91005300).

Almost surely, 2^634003381 is an apocalyptic number.

It is an amenable number.

634003381 is a deficient number, since it is larger than the sum of its proper divisors (94039019).

634003381 is a wasteful number, since it uses less digits than its factorization.

634003381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033539.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 634003381 is about 25179.4237622707. The cubic root of 634003381 is about 859.0738998683.

The spelling of 634003381 in words is "six hundred thirty-four million, three thousand, three hundred eighty-one".