1016326644 has 48 divisors (see below), whose sum is σ = 2515968000. Its totient is φ = 318409056.

The previous prime is 1016326639. The next prime is 1016326669. The reversal of 1016326644 is 4466236101.

It is a super-3 number, since 3×1016326644³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11407 + ... + 46505.

It is an arithmetic number, because the mean of its divisors is an integer number (52416000).

Almost surely, 2^1016326644 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 1016326644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1257984000).

1016326644 is an abundant number, since it is smaller than the sum of its proper divisors (1499641356).

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

1016326644 is a wasteful number, since it uses less digits than its factorization.

1016326644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35252 (or 35250 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 1016326644 is about 31879.8783561042. The cubic root of 1016326644 is about 1005.4128627199.

The spelling of 1016326644 in words is "one billion, sixteen million, three hundred twenty-six thousand, six hundred forty-four".