8742621930 has 64 divisors (see below), whose sum is σ = 24132591360. Its totient is φ = 1985577984.

The previous prime is 8742621919. The next prime is 8742621949. The reversal of 8742621930 is 391262478.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon 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, 99615 + ... + 165554.

It is an arithmetic number, because the mean of its divisors is an integer number (377071740).

Almost surely, 2^8742621930 is an apocalyptic number.

8742621930 is an abundant number, since it is smaller than the sum of its proper divisors (15389969430).

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

8742621930 is a wasteful number, since it uses less digits than its factorization.

8742621930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265343.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 8742621930 is about 93501.9889093275. The cubic root of 8742621930 is about 2060.0633035814.

The spelling of 8742621930 in words is "eight billion, seven hundred forty-two million, six hundred twenty-one thousand, nine hundred thirty".