1223076072 has 32 divisors (see below), whose sum is σ = 3059820000. Its totient is φ = 407408064.

The previous prime is 1223076061. The next prime is 1223076097. The reversal of 1223076072 is 2706703221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18978 + ... + 52974.

It is an arithmetic number, because the mean of its divisors is an integer number (95619375).

Almost surely, 2^1223076072 is an apocalyptic number.

1223076072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1223076072 is an abundant number, since it is smaller than the sum of its proper divisors (1836743928).

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

1223076072 is a wasteful number, since it uses less digits than its factorization.

1223076072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35505 (or 35501 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 1223076072 is about 34972.5045142609. The cubic root of 1223076072 is about 1069.4270295399.

Adding to 1223076072 its reverse (2706703221), we get a palindrome (3929779293).

The spelling of 1223076072 in words is "one billion, two hundred twenty-three million, seventy-six thousand, seventy-two".