1273322072 has 16 divisors (see below), whose sum is σ = 2604522600. Its totient is φ = 578782720.

The previous prime is 1273322059. The next prime is 1273322077. The reversal of 1273322072 is 2702233721.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1273322077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7234697 + ... + 7234872.

Almost surely, 2^1273322072 is an apocalyptic number.

It is an amenable number.

1273322072 is an abundant number, since it is smaller than the sum of its proper divisors (1331200528).

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

1273322072 is a wasteful number, since it uses less digits than its factorization.

1273322072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14469586 (or 14469582 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 29.

The square root of 1273322072 is about 35683.6387158036. The cubic root of 1273322072 is about 1083.8755570348.

Adding to 1273322072 its reverse (2702233721), we get a palindrome (3975555793).

The spelling of 1273322072 in words is "one billion, two hundred seventy-three million, three hundred twenty-two thousand, seventy-two".