422757648 has 30 divisors (see below), whose sum is σ = 1183134654. Its totient is φ = 140919168.

The previous prime is 422757637. The next prime is 422757653. The reversal of 422757648 is 846757224.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 272646144 + 150111504 = 16512^2 + 12252^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1467765 + ... + 1468052.

Almost surely, 2^422757648 is an apocalyptic number.

422757648 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

422757648 is an abundant number, since it is smaller than the sum of its proper divisors (760377006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422757648 is a wasteful number, since it uses less digits than its factorization.

422757648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2935831 (or 2935822 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 422757648 is about 20561.0711783214. The cubic root of 422757648 is about 750.5226863141.

The spelling of 422757648 in words is "four hundred twenty-two million, seven hundred fifty-seven thousand, six hundred forty-eight".