1064646406 has 8 divisors (see below), whose sum is σ = 1597277520. Its totient is φ = 532220568.

The previous prime is 1064646389. The next prime is 1064646421. The reversal of 1064646406 is 6046464601.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1064646406² = 2266943939617433672, 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 3 ways as a sum of consecutive naturals, for example, 37621 + ... + 59536.

It is an arithmetic number, because the mean of its divisors is an integer number (199659690).

Almost surely, 2^1064646406 is an apocalyptic number.

1064646406 is a deficient number, since it is larger than the sum of its proper divisors (532631114).

1064646406 is an equidigital number, since it uses as much as digits as its factorization.

1064646406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102638.

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 1064646406 is about 32628.9197798517. The cubic root of 1064646406 is about 1021.1004418468.

The spelling of 1064646406 in words is "one billion, sixty-four million, six hundred forty-six thousand, four hundred six".