427644446 has 16 divisors (see below), whose sum is σ = 672826176. Its totient is φ = 203615136.

The previous prime is 427644443. The next prime is 427644463. The reversal of 427644446 is 644446724.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427644443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58001 + ... + 64956.

It is an arithmetic number, because the mean of its divisors is an integer number (42051636).

Almost surely, 2^427644446 is an apocalyptic number.

427644446 is a deficient number, since it is larger than the sum of its proper divisors (245181730).

427644446 is a wasteful number, since it uses less digits than its factorization.

427644446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123043.

The product of its digits is 516096, while the sum is 41.

The square root of 427644446 is about 20679.5659045348. The cubic root of 427644446 is about 753.4034628546.

The spelling of 427644446 in words is "four hundred twenty-seven million, six hundred forty-four thousand, four hundred forty-six".