427221446 has 32 divisors (see below), whose sum is σ = 690042240. Its totient is φ = 197981056.

The previous prime is 427221439. The next prime is 427221461. The reversal of 427221446 is 644122724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143000 + ... + 145956.

It is an arithmetic number, because the mean of its divisors is an integer number (21563820).

Almost surely, 2^427221446 is an apocalyptic number.

427221446 is a deficient number, since it is larger than the sum of its proper divisors (262820794).

427221446 is a wasteful number, since it uses less digits than its factorization.

427221446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088.

The product of its digits is 21504, while the sum is 32.

The square root of 427221446 is about 20669.3358867671. The cubic root of 427221446 is about 753.1549738729.

The spelling of 427221446 in words is "four hundred twenty-seven million, two hundred twenty-one thousand, four hundred forty-six".