994726656 has 540 divisors, whose sum is σ = 3806316360. Its totient is φ = 255467520.

The previous prime is 994726643. The next prime is 994726717. The reversal of 994726656 is 656627499.

It is a super-2 number, since 2×994726656² = 1978962240313884672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (4898880) is a multiple of the sum of its prime divisors (112).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 11176660 + ... + 11176748.

It is an arithmetic number, because the mean of its divisors is an integer number (7048734).

Almost surely, 2^994726656 is an apocalyptic number.

994726656 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 994726656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1903158180).

994726656 is an abundant number, since it is smaller than the sum of its proper divisors (2811589704).

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

994726656 is a wasteful number, since it uses less digits than its factorization.

994726656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 112 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 994726656 is about 31539.2874998786. The cubic root of 994726656 is about 998.2391197875.

The spelling of 994726656 in words is "nine hundred ninety-four million, seven hundred twenty-six thousand, six hundred fifty-six".