990224552 has 16 divisors (see below), whose sum is σ = 1880174400. Its totient is φ = 488844720.

The previous prime is 990224549. The next prime is 990224569. The reversal of 990224552 is 255422099.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 782774 + ... + 784037.

It is an arithmetic number, because the mean of its divisors is an integer number (117510900).

Almost surely, 2^990224552 is an apocalyptic number.

It is an amenable number.

990224552 is a deficient number, since it is larger than the sum of its proper divisors (889949848).

990224552 is a wasteful number, since it uses less digits than its factorization.

990224552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566896 (or 1566892 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 990224552 is about 31467.8336083055. The cubic root of 990224552 is about 996.7308415828.

The spelling of 990224552 in words is "nine hundred ninety million, two hundred twenty-four thousand, five hundred fifty-two".