1066907904 has 144 divisors (see below), whose sum is σ = 3005366784. Its totient is φ = 335462400.

The previous prime is 1066907869. The next prime is 1066907909. The reversal of 1066907904 is 4097096601.

It is a super-2 number, since 2×1066907904² = 2276584951235346432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066907909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 975582 + ... + 976674.

Almost surely, 2^1066907904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1066907904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1502683392).

1066907904 is an abundant number, since it is smaller than the sum of its proper divisors (1938458880).

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

1066907904 is a wasteful number, since it uses less digits than its factorization.

1066907904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184 (or 1170 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 1066907904 is about 32663.5562056553. The cubic root of 1066907904 is about 1021.8229300704.

The spelling of 1066907904 in words is "one billion, sixty-six million, nine hundred seven thousand, nine hundred four".