30440138630 has 64 divisors (see below), whose sum is σ = 63408536640. Its totient is φ = 10398412800.

The previous prime is 30440138591. The next prime is 30440138657. The reversal of 30440138630 is 3683104403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 996626 + ... + 1026714.

It is an arithmetic number, because the mean of its divisors is an integer number (990758385).

Almost surely, 2^30440138630 is an apocalyptic number.

30440138630 is an abundant number, since it is smaller than the sum of its proper divisors (32968398010).

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

30440138630 is a wasteful number, since it uses less digits than its factorization.

30440138630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30665.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 30440138630 in words is "thirty billion, four hundred forty million, one hundred thirty-eight thousand, six hundred thirty".