634044440436 has 48 divisors (see below), whose sum is σ = 1657551080640. Its totient is φ = 186941848320.

The previous prime is 634044440417. The next prime is 634044440441.

634044440436 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64905481 + ... + 64915248.

It is an arithmetic number, because the mean of its divisors is an integer number (34532314180).

Almost surely, 2^634044440436 is an apocalyptic number.

634044440436 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

634044440436 is an abundant number, since it is smaller than the sum of its proper divisors (1023506640204).

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

634044440436 is a wasteful number, since it uses less digits than its factorization.

634044440436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129820784 (or 129820782 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 42.

The spelling of 634044440436 in words is "six hundred thirty-four billion, forty-four million, four hundred forty thousand, four hundred thirty-six".