990254460 has 96 divisors (see below), whose sum is σ = 2991320640. Its totient is φ = 243320832.

The previous prime is 990254459. The next prime is 990254497. The reversal of 990254460 is 64452099.

990254460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 805126 + ... + 806354.

It is an arithmetic number, because the mean of its divisors is an integer number (31159590).

Almost surely, 2^990254460 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 990254460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1495660320).

990254460 is an abundant number, since it is smaller than the sum of its proper divisors (2001066180).

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

990254460 is a wasteful number, since it uses less digits than its factorization.

990254460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287 (or 2285 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 990254460 is about 31468.3088201448. The cubic root of 990254460 is about 996.7408763188.

The spelling of 990254460 in words is "nine hundred ninety million, two hundred fifty-four thousand, four hundred sixty".