634440045 has 16 divisors (see below), whose sum is σ = 1018354752. Its totient is φ = 337284480.

The previous prime is 634440041. The next prime is 634440049. The reversal of 634440045 is 540044436.

634440045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (634440041) and next prime (634440049).

It is not a de Polignac number, because 634440045 - 2² = 634440041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 634439994 and 634440021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634440041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62871 + ... + 72260.

It is an arithmetic number, because the mean of its divisors is an integer number (63647172).

Almost surely, 2^634440045 is an apocalyptic number.

It is an amenable number.

634440045 is a deficient number, since it is larger than the sum of its proper divisors (383914707).

634440045 is a wasteful number, since it uses less digits than its factorization.

634440045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135452.

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 634440045 is about 25188.0933180739. The cubic root of 634440045 is about 859.2710810232.

The spelling of 634440045 in words is "six hundred thirty-four million, four hundred forty thousand, forty-five".