1012866646 has 8 divisors (see below), whose sum is σ = 1657418184. Its totient is φ = 460393920.

The previous prime is 1012866641. The next prime is 1012866703. The reversal of 1012866646 is 6466682101.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1012866599 and 1012866608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012866641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23019675 + ... + 23019718.

It is an arithmetic number, because the mean of its divisors is an integer number (207177273).

Almost surely, 2^1012866646 is an apocalyptic number.

1012866646 is a deficient number, since it is larger than the sum of its proper divisors (644551538).

1012866646 is a wasteful number, since it uses less digits than its factorization.

1012866646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46039406.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 1012866646 is about 31825.5659179849. The cubic root of 1012866646 is about 1004.2706178603.

The spelling of 1012866646 in words is "one billion, twelve million, eight hundred sixty-six thousand, six hundred forty-six".