8428221364 has 12 divisors (see below), whose sum is σ = 15092396704. Its totient is φ = 4116108024.

The previous prime is 8428221341. The next prime is 8428221371. The reversal of 8428221364 is 4631228248.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

8428221364 is a modest number, since divided by 221364 gives 8428 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24500472 + ... + 24500815.

Almost surely, 2^8428221364 is an apocalyptic number.

It is an amenable number.

8428221364 is a deficient number, since it is larger than the sum of its proper divisors (6664175340).

8428221364 is a wasteful number, since it uses less digits than its factorization.

8428221364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49001334 (or 49001332 counting only the distinct ones).

The product of its digits is 147456, while the sum is 40.

The square root of 8428221364 is about 91805.3449642231. The cubic root of 8428221364 is about 2035.0666841214.

The spelling of 8428221364 in words is "eight billion, four hundred twenty-eight million, two hundred twenty-one thousand, three hundred sixty-four".