427328446 has 4 divisors (see below), whose sum is σ = 640992672. Its totient is φ = 213664222.

The previous prime is 427328443. The next prime is 427328471. The reversal of 427328446 is 644823724.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 427328399 and 427328408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427328443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106832110 + ... + 106832113.

It is an arithmetic number, because the mean of its divisors is an integer number (160248168).

Almost surely, 2^427328446 is an apocalyptic number.

427328446 is a deficient number, since it is larger than the sum of its proper divisors (213664226).

427328446 is a wasteful number, since it uses less digits than its factorization.

427328446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213664225.

The product of its digits is 258048, while the sum is 40.

The square root of 427328446 is about 20671.9241000929. The cubic root of 427328446 is about 753.2178459158.

The spelling of 427328446 in words is "four hundred twenty-seven million, three hundred twenty-eight thousand, four hundred forty-six".