634040554 has 24 divisors (see below), whose sum is σ = 1095176160. Its totient is φ = 269676408.

The previous prime is 634040549. The next prime is 634040557. The reversal of 634040554 is 455040436.

634040554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (634040557) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1260267 + ... + 1260769.

It is an arithmetic number, because the mean of its divisors is an integer number (45632340).

Almost surely, 2^634040554 is an apocalyptic number.

634040554 is a deficient number, since it is larger than the sum of its proper divisors (461135606).

634040554 is an equidigital number, since it uses as much as digits as its factorization.

634040554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1194 (or 691 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 634040554 is about 25180.1619136971. The cubic root of 634040554 is about 859.0906893318.

The spelling of 634040554 in words is "six hundred thirty-four million, forty thousand, five hundred fifty-four".