634427148 has 24 divisors (see below), whose sum is σ = 1567408752. Its totient is φ = 199035904.

The previous prime is 634427111. The next prime is 634427179. The reversal of 634427148 is 841724436.

It is a super-2 number, since 2×634427148² = 804995612238827808, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1554765 + ... + 1555172.

It is an arithmetic number, because the mean of its divisors is an integer number (65308698).

Almost surely, 2^634427148 is an apocalyptic number.

634427148 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

634427148 is an abundant number, since it is smaller than the sum of its proper divisors (932981604).

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

634427148 is a wasteful number, since it uses less digits than its factorization.

634427148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109961 (or 3109959 counting only the distinct ones).

The product of its digits is 129024, while the sum is 39.

The square root of 634427148 is about 25187.8373029524. The cubic root of 634427148 is about 859.2652585165.

The spelling of 634427148 in words is "six hundred thirty-four million, four hundred twenty-seven thousand, one hundred forty-eight".