634032340 has 24 divisors (see below), whose sum is σ = 1409790312. Its totient is φ = 238694400.

The previous prime is 634032317. The next prime is 634032359. The reversal of 634032340 is 43230436.

It can be written as a sum of positive squares in 4 ways, for example, as 5326864 + 628705476 = 2308^2 + 25074^2 .

It is a congruent number.

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, 932061 + ... + 932740.

It is an arithmetic number, because the mean of its divisors is an integer number (58741263).

Almost surely, 2^634032340 is an apocalyptic number.

It is an amenable number.

634032340 is an abundant number, since it is smaller than the sum of its proper divisors (775757972).

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

634032340 is a wasteful number, since it uses less digits than its factorization.

634032340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864827 (or 1864825 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 634032340 is about 25179.9988085782. The cubic root of 634032340 is about 859.0869794738.

Adding to 634032340 its reverse (43230436), we get a palindrome (677262776).

The spelling of 634032340 in words is "six hundred thirty-four million, thirty-two thousand, three hundred forty".