634453540 has 24 divisors (see below), whose sum is σ = 1522688832. Its totient is φ = 217526880.

The previous prime is 634453537. The next prime is 634453709. The reversal of 634453540 is 45354436.

634453540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 634453496 and 634453505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2265766 + ... + 2266045.

It is an arithmetic number, because the mean of its divisors is an integer number (63445368).

Almost surely, 2^634453540 is an apocalyptic number.

It is an amenable number.

634453540 is an abundant number, since it is smaller than the sum of its proper divisors (888235292).

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

634453540 is a wasteful number, since it uses less digits than its factorization.

634453540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531827 (or 4531825 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

The square root of 634453540 is about 25188.3612011580. The cubic root of 634453540 is about 859.2771734197.

The spelling of 634453540 in words is "six hundred thirty-four million, four hundred fifty-three thousand, five hundred forty".