1066764732 has 96 divisors (see below), whose sum is σ = 2794176000. Its totient is φ = 313958400.

The previous prime is 1066764731. The next prime is 1066764733. The reversal of 1066764732 is 2374676601.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1066764731) and next prime (1066764733).

It is a super-2 number, since 2×1066764732² = 2275973986878063648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066764731) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2375644 + ... + 2376092.

It is an arithmetic number, because the mean of its divisors is an integer number (29106000).

Almost surely, 2^1066764732 is an apocalyptic number.

1066764732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1066764732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1397088000).

1066764732 is an abundant number, since it is smaller than the sum of its proper divisors (1727411268).

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

1066764732 is a wasteful number, since it uses less digits than its factorization.

1066764732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947 (or 945 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 42.

The square root of 1066764732 is about 32661.3645152801. The cubic root of 1066764732 is about 1021.7772207277. Note that the first 3 decimals are identical.

The spelling of 1066764732 in words is "one billion, sixty-six million, seven hundred sixty-four thousand, seven hundred thirty-two".