1072513668 has 12 divisors (see below), whose sum is σ = 2502531920. Its totient is φ = 357504552.

The previous prime is 1072513661. The next prime is 1072513669. The reversal of 1072513668 is 8663152701.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (1072513661) 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, 44688058 + ... + 44688081.

Almost surely, 2^1072513668 is an apocalyptic number.

It is an amenable number.

1072513668 is an abundant number, since it is smaller than the sum of its proper divisors (1430018252).

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

1072513668 is a wasteful number, since it uses less digits than its factorization.

1072513668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89376146 (or 89376144 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1072513668 is about 32749.2544647966. The cubic root of 1072513668 is about 1023.6094307720.

The spelling of 1072513668 in words is "one billion, seventy-two million, five hundred thirteen thousand, six hundred sixty-eight".