1066450404 has 12 divisors (see below), whose sum is σ = 2488384304. Its totient is φ = 355483464.

The previous prime is 1066450391. The next prime is 1066450423. The reversal of 1066450404 is 4040546601.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1066450404² = 2274632928383526432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44435422 + ... + 44435445.

Almost surely, 2^1066450404 is an apocalyptic number.

It is an amenable number.

1066450404 is an abundant number, since it is smaller than the sum of its proper divisors (1421933900).

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

1066450404 is a wasteful number, since it uses less digits than its factorization.

1066450404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88870874 (or 88870872 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 1066450404 is about 32656.5522368789. The cubic root of 1066450404 is about 1021.6768534737.

The spelling of 1066450404 in words is "one billion, sixty-six million, four hundred fifty thousand, four hundred four".