1066074720 has 96 divisors (see below), whose sum is σ = 3390895872. Its totient is φ = 281513472.

The previous prime is 1066074677. The next prime is 1066074733. The reversal of 1066074720 is 274706601.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1066074720² = 2273030617246156800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38659 + ... + 60221.

It is an arithmetic number, because the mean of its divisors is an integer number (35321832).

Almost surely, 2^1066074720 is an apocalyptic number.

1066074720 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 1066074720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1695447936).

1066074720 is an abundant number, since it is smaller than the sum of its proper divisors (2324821152).

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

1066074720 is a wasteful number, since it uses less digits than its factorization.

1066074720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21684 (or 21676 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 1066074720 is about 32650.7996839281. The cubic root of 1066074720 is about 1021.5568689201.

The spelling of 1066074720 in words is "one billion, sixty-six million, seventy-four thousand, seven hundred twenty".