634880148 has 24 divisors (see below), whose sum is σ = 1693013952. Its totient is φ = 181394304.

The previous prime is 634880143. The next prime is 634880149. The reversal of 634880148 is 841088436.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634880143) by changing a digit.

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, 3778965 + ... + 3779132.

It is an arithmetic number, because the mean of its divisors is an integer number (70542248).

Almost surely, 2^634880148 is an apocalyptic number.

It is an amenable number.

634880148 is an abundant number, since it is smaller than the sum of its proper divisors (1058133804).

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

634880148 is a wasteful number, since it uses less digits than its factorization.

634880148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7558111 (or 7558109 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The square root of 634880148 is about 25196.8281337156. The cubic root of 634880148 is about 859.4697235762.

The spelling of 634880148 in words is "six hundred thirty-four million, eight hundred eighty thousand, one hundred forty-eight".