1066421446 has 16 divisors (see below), whose sum is σ = 1658059776. Its totient is φ = 514073736.

The previous prime is 1066421431. The next prime is 1066421467. The reversal of 1066421446 is 6441246601.

1066421446 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1066421446² = 2274509400977461832, 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, 78366 + ... + 90961.

It is an arithmetic number, because the mean of its divisors is an integer number (103628736).

Almost surely, 2^1066421446 is an apocalyptic number.

1066421446 is a deficient number, since it is larger than the sum of its proper divisors (591638330).

1066421446 is a wasteful number, since it uses less digits than its factorization.

1066421446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169443.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 1066421446 is about 32656.1088618960. The cubic root of 1066421446 is about 1021.6676059781.

The spelling of 1066421446 in words is "one billion, sixty-six million, four hundred twenty-one thousand, four hundred forty-six".