990726336 has 112 divisors (see below), whose sum is σ = 2929737600. Its totient is φ = 328294656.

The previous prime is 990726313. The next prime is 990726343. The reversal of 990726336 is 633627099.

990726336 is a `hidden beast` number, since 9 + 9 + 0 + 7 + 2 + 633 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 990726291 and 990726300.

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, 307711 + ... + 310913.

Almost surely, 2^990726336 is an apocalyptic number.

990726336 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 990726336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1464868800).

990726336 is an abundant number, since it is smaller than the sum of its proper divisors (1939011264).

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

990726336 is a wasteful number, since it uses less digits than its factorization.

990726336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403 (or 3387 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 45.

The square root of 990726336 is about 31475.8055655451. The cubic root of 990726336 is about 996.8991734798.

The spelling of 990726336 in words is "nine hundred ninety million, seven hundred twenty-six thousand, three hundred thirty-six".