1067640912 has 160 divisors (see below), whose sum is σ = 3342424960. Its totient is φ = 328364928.

The previous prime is 1067640877. The next prime is 1067640949. The reversal of 1067640912 is 2190467601.

1067640912 is a `hidden beast` number, since 1 + 0 + 6 + 7 + 640 + 9 + 1 + 2 = 666.

1067640912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1067640912² = 2279714233952383488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 453723 + ... + 456069.

It is an arithmetic number, because the mean of its divisors is an integer number (20890156).

Almost surely, 2^1067640912 is an apocalyptic number.

1067640912 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 1067640912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1671212480).

1067640912 is an abundant number, since it is smaller than the sum of its proper divisors (2274784048).

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

1067640912 is an equidigital number, since it uses as much as digits as its factorization.

1067640912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389 (or 2365 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 1067640912 is about 32674.7748576788. The cubic root of 1067640912 is about 1022.0568874448.

The spelling of 1067640912 in words is "one billion, sixty-seven million, six hundred forty thousand, nine hundred twelve".