1067611728 has 80 divisors (see below), whose sum is σ = 2855261696. Its totient is φ = 343388160.

The previous prime is 1067611663. The next prime is 1067611739. The reversal of 1067611728 is 8271167601.

It is a super-2 number, since 2×1067611728² = 2279589603526291968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 643476 + ... + 645132.

Almost surely, 2^1067611728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1067611728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1427630848).

1067611728 is an abundant number, since it is smaller than the sum of its proper divisors (1787649968).

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

1067611728 is a wasteful number, since it uses less digits than its factorization.

1067611728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132 (or 2126 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 1067611728 is about 32674.3282715957. The cubic root of 1067611728 is about 1022.0475747069.

The spelling of 1067611728 in words is "one billion, sixty-seven million, six hundred eleven thousand, seven hundred twenty-eight".