1422868648 has 8 divisors (see below), whose sum is σ = 2667878730. Its totient is φ = 711434320.

The previous prime is 1422868631. The next prime is 1422868649. The reversal of 1422868648 is 8468682241.

It can be written as a sum of positive squares in only one way, i.e., 1418124964 + 4743684 = 37658^2 + 2178^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1422868648² = 4049110378922695808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1422868649) 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 as a sum of consecutive naturals, namely, 88929283 + ... + 88929298.

Almost surely, 2^1422868648 is an apocalyptic number.

It is an amenable number.

1422868648 is a deficient number, since it is larger than the sum of its proper divisors (1245010082).

1422868648 is a wasteful number, since it uses less digits than its factorization.

1422868648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177858587 (or 177858583 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 49.

The square root of 1422868648 is about 37720.9311656009. The cubic root of 1422868648 is about 1124.7472414546.

The spelling of 1422868648 in words is "one billion, four hundred twenty-two million, eight hundred sixty-eight thousand, six hundred forty-eight".