9421320190 has 16 divisors (see below), whose sum is σ = 17543148480. Its totient is φ = 3638578720.

The previous prime is 9421320157. The next prime is 9421320203. The reversal of 9421320190 is 910231249.

It is a super-2 number, since 2×9421320190² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16243366 + ... + 16243945.

It is an arithmetic number, because the mean of its divisors is an integer number (1096446780).

Almost surely, 2^9421320190 is an apocalyptic number.

9421320190 is a deficient number, since it is larger than the sum of its proper divisors (8121828290).

9421320190 is a wasteful number, since it uses less digits than its factorization.

9421320190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32487347.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 9421320190 is about 97063.4853588104. The cubic root of 9421320190 is about 2112.0486672323.

The spelling of 9421320190 in words is "nine billion, four hundred twenty-one million, three hundred twenty thousand, one hundred ninety".