990040662 has 48 divisors (see below), whose sum is σ = 2445992640. Its totient is φ = 286707456.

The previous prime is 990040661. The next prime is 990040693. The reversal of 990040662 is 266040099.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990040661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120462 + ... + 128417.

It is an arithmetic number, because the mean of its divisors is an integer number (50958180).

Almost surely, 2^990040662 is an apocalyptic number.

990040662 is an abundant number, since it is smaller than the sum of its proper divisors (1455951978).

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

990040662 is a wasteful number, since it uses less digits than its factorization.

990040662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248917 (or 248914 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 990040662 is about 31464.9116000665. The cubic root of 990040662 is about 996.6691383455.

The spelling of 990040662 in words is "nine hundred ninety million, forty thousand, six hundred sixty-two".