1423621648 has 10 divisors (see below), whose sum is σ = 2758266974. Its totient is φ = 711810816.

The previous prime is 1423621631. The next prime is 1423621651. The reversal of 1423621648 is 8461263241.

It can be written as a sum of positive squares in only one way, i.e., 1071383824 + 352237824 = 32732^2 + 18768^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44488161 + ... + 44488192.

Almost surely, 2^1423621648 is an apocalyptic number.

It is an amenable number.

1423621648 is a deficient number, since it is larger than the sum of its proper divisors (1334645326).

1423621648 is an equidigital number, since it uses as much as digits as its factorization.

1423621648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88976361 (or 88976355 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 1423621648 is about 37730.9110412139. The cubic root of 1423621648 is about 1124.9456165974.

Adding to 1423621648 its reverse (8461263241), we get a palindrome (9884884889).

The spelling of 1423621648 in words is "one billion, four hundred twenty-three million, six hundred twenty-one thousand, six hundred forty-eight".