427221376 has 32 divisors (see below), whose sum is σ = 852387480. Its totient is φ = 213288960.

The previous prime is 427221371. The next prime is 427221391. The reversal of 427221376 is 673122724.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×427221376² = 365036208222666752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427221371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98616 + ... + 102856.

Almost surely, 2^427221376 is an apocalyptic number.

It is an amenable number.

427221376 is a deficient number, since it is larger than the sum of its proper divisors (425166104).

427221376 is an equidigital number, since it uses as much as digits as its factorization.

427221376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5042 (or 5030 counting only the distinct ones).

The product of its digits is 28224, while the sum is 34.

The square root of 427221376 is about 20669.3341934374. The cubic root of 427221376 is about 753.1549327382.

The spelling of 427221376 in words is "four hundred twenty-seven million, two hundred twenty-one thousand, three hundred seventy-six".