8421950590 has 16 divisors (see below), whose sum is σ = 15160562640. Its totient is φ = 3368546560.

The previous prime is 8421950587. The next prime is 8421950599. The reversal of 8421950590 is 950591248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8421950599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242625 + ... + 275155.

It is an arithmetic number, because the mean of its divisors is an integer number (947535165).

Almost surely, 2^8421950590 is an apocalyptic number.

8421950590 is a deficient number, since it is larger than the sum of its proper divisors (6738612050).

8421950590 is a wasteful number, since it uses less digits than its factorization.

8421950590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58427.

The product of its (nonzero) digits is 129600, while the sum is 43.

The square root of 8421950590 is about 91771.1860553191. The cubic root of 8421950590 is about 2034.5618480896.

The spelling of 8421950590 in words is "eight billion, four hundred twenty-one million, nine hundred fifty thousand, five hundred ninety".