1067820988 has 24 divisors (see below), whose sum is σ = 2018933280. Its totient is φ = 491248320.

The previous prime is 1067820973. The next prime is 1067821019. The reversal of 1067820988 is 8890287601.

It is a super-2 number, since 2×1067820988² = 2280483324826592288, 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 7 ways as a sum of consecutive naturals, for example, 16843 + ... + 49186.

It is an arithmetic number, because the mean of its divisors is an integer number (84122220).

Almost surely, 2^1067820988 is an apocalyptic number.

It is an amenable number.

1067820988 is a deficient number, since it is larger than the sum of its proper divisors (951112292).

1067820988 is a wasteful number, since it uses less digits than its factorization.

1067820988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66357 (or 66355 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 49.

The square root of 1067820988 is about 32677.5303228380. The cubic root of 1067820988 is about 1022.1143467045.

The spelling of 1067820988 in words is "one billion, sixty-seven million, eight hundred twenty thousand, nine hundred eighty-eight".