545890884 has 192 divisors, whose sum is σ = 1651249152. Its totient is φ = 136281600.

The previous prime is 545890883. The next prime is 545890889. The reversal of 545890884 is 488098545.

It is not an unprimeable number, because it can be changed into a prime (545890883) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3476934 + ... + 3477090.

It is an arithmetic number, because the mean of its divisors is an integer number (8600256).

Almost surely, 2^545890884 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 545890884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (825624576).

545890884 is an abundant number, since it is smaller than the sum of its proper divisors (1105358268).

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

545890884 is a wasteful number, since it uses less digits than its factorization.

545890884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 51.

The square root of 545890884 is about 23364.3079075756. The cubic root of 545890884 is about 817.2757521631.

The spelling of 545890884 in words is "five hundred forty-five million, eight hundred ninety thousand, eight hundred eighty-four".