545424880 has 320 divisors, whose sum is σ = 1749888000. Its totient is φ = 155796480.

The previous prime is 545424871. The next prime is 545424883. The reversal of 545424880 is 88424545.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545424883) 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, 3923851 + ... + 3923989.

It is an arithmetic number, because the mean of its divisors is an integer number (5468400).

Almost surely, 2^545424880 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 545424880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (874944000).

545424880 is an abundant number, since it is smaller than the sum of its proper divisors (1204463120).

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

545424880 is a wasteful number, since it uses less digits than its factorization.

545424880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 40.

The square root of 545424880 is about 23354.3332167716. Note that the first 3 decimals coincide. The cubic root of 545424880 is about 817.0431280221.

The spelling of 545424880 in words is "five hundred forty-five million, four hundred twenty-four thousand, eight hundred eighty".