1427630656 has 21 divisors (see below), whose sum is σ = 2833554531. Its totient is φ = 713664192.

The previous prime is 1427630651. The next prime is 1427630669. The reversal of 1427630656 is 6560367241.

The square root of 1427630656 is 37784.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1427630651) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 299911 + ... + 304633.

Almost surely, 2^1427630656 is an apocalyptic number.

1427630656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1427630656 is the 37784-th square number.

It is an amenable number.

1427630656 is a deficient number, since it is larger than the sum of its proper divisors (1405923875).

1427630656 is an frugal number, since it uses more digits than its factorization.

1427630656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9458 (or 4725 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The cubic root of 1427630656 is about 1126.0005994274. Note that the first 3 decimals are identical.

Adding to 1427630656 its reverse (6560367241), we get a palindrome (7987997897).

The spelling of 1427630656 in words is "one billion, four hundred twenty-seven million, six hundred thirty thousand, six hundred fifty-six".