634204403740 has 48 divisors (see below), whose sum is σ = 1340151295392. Its totient is φ = 252099403776.

The previous prime is 634204403719. The next prime is 634204403803. The reversal of 634204403740 is 47304402436.

It is a self number, because there is not a number n which added to its sum of digits gives 634204403740.

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, 3568672 + ... + 3742168.

It is an arithmetic number, because the mean of its divisors is an integer number (27919818654).

Almost surely, 2^634204403740 is an apocalyptic number.

It is an amenable number.

634204403740 is an abundant number, since it is smaller than the sum of its proper divisors (705946891652).

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

634204403740 is a wasteful number, since it uses less digits than its factorization.

634204403740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174646 (or 174644 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 37.

The spelling of 634204403740 in words is "six hundred thirty-four billion, two hundred four million, four hundred three thousand, seven hundred forty".