990754544 has 80 divisors (see below), whose sum is σ = 2246522880. Its totient is φ = 419178240.

The previous prime is 990754517. The next prime is 990754549. The reversal of 990754544 is 445457099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990754549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118469 + ... + 126555.

It is an arithmetic number, because the mean of its divisors is an integer number (28081536).

Almost surely, 2^990754544 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 990754544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1123261440).

990754544 is an abundant number, since it is smaller than the sum of its proper divisors (1255768336).

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

990754544 is a wasteful number, since it uses less digits than its factorization.

990754544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8158 (or 8152 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 47.

The square root of 990754544 is about 31476.2536525553. The cubic root of 990754544 is about 996.9086346411.

The spelling of 990754544 in words is "nine hundred ninety million, seven hundred fifty-four thousand, five hundred forty-four".