40630181388 has 48 divisors (see below), whose sum is σ = 97677951840. Its totient is φ = 13138537984.

The previous prime is 40630181327. The next prime is 40630181411. The reversal of 40630181388 is 88318103604.

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, 302295 + ... + 415502.

It is an arithmetic number, because the mean of its divisors is an integer number (2034957330).

Almost surely, 2^40630181388 is an apocalyptic number.

It is an amenable number.

40630181388 is an abundant number, since it is smaller than the sum of its proper divisors (57047770452).

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

40630181388 is a wasteful number, since it uses less digits than its factorization.

40630181388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717946 (or 717944 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 40630181388 in words is "forty billion, six hundred thirty million, one hundred eighty-one thousand, three hundred eighty-eight".