545446880 has 96 divisors (see below), whose sum is σ = 1410877440. Its totient is φ = 197624320.

The previous prime is 545446879. The next prime is 545446897. The reversal of 545446880 is 88644545.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 842717 + ... + 843363.

It is an arithmetic number, because the mean of its divisors is an integer number (14696640).

Almost surely, 2^545446880 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 545446880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705438720).

545446880 is an abundant number, since it is smaller than the sum of its proper divisors (865430560).

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

545446880 is a wasteful number, since it uses less digits than its factorization.

545446880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 44.

The square root of 545446880 is about 23354.8042166917. The cubic root of 545446880 is about 817.0541131628.

The spelling of 545446880 in words is "five hundred forty-five million, four hundred forty-six thousand, eight hundred eighty".