1067897520 has 140 divisors (see below), whose sum is σ = 3722792976. Its totient is φ = 284757120.

The previous prime is 1067897503. The next prime is 1067897531. The reversal of 1067897520 is 257987601.

It is a super-2 number, since 2×1067897520² = 2280810226444300800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 49165 + ... + 67475.

Almost surely, 2^1067897520 is an apocalyptic number.

1067897520 is a gapful number since it is divisible by the number (10) 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 1067897520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1861396488).

1067897520 is an abundant number, since it is smaller than the sum of its proper divisors (2654895456).

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

1067897520 is an equidigital number, since it uses as much as digits as its factorization.

1067897520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18342 (or 18321 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 1067897520 is about 32678.7013205849. The cubic root of 1067897520 is about 1022.1387648381.

The spelling of 1067897520 in words is "one billion, sixty-seven million, eight hundred ninety-seven thousand, five hundred twenty".