427221590 has 8 divisors (see below), whose sum is σ = 768998880. Its totient is φ = 170888632.

The previous prime is 427221589. The next prime is 427221601. The reversal of 427221590 is 95122724.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 21361070 + ... + 21361089.

It is an arithmetic number, because the mean of its divisors is an integer number (96124860).

Almost surely, 2^427221590 is an apocalyptic number.

427221590 is a deficient number, since it is larger than the sum of its proper divisors (341777290).

427221590 is a wasteful number, since it uses less digits than its factorization.

427221590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42722166.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 427221590 is about 20669.3393701879. The cubic root of 427221590 is about 753.1550584928.

The spelling of 427221590 in words is "four hundred twenty-seven million, two hundred twenty-one thousand, five hundred ninety".