545670720 has 168 divisors, whose sum is σ = 2145084864. Its totient is φ = 124720128.

The previous prime is 545670701. The next prime is 545670721. The reversal of 545670720 is 27076545.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (545670721) 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, 6627 + ... + 33693.

Almost surely, 2^545670720 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 545670720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1072542432).

545670720 is an abundant number, since it is smaller than the sum of its proper divisors (1599414144).

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

545670720 is a wasteful number, since it uses less digits than its factorization.

545670720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27097 (or 27084 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 545670720 is about 23359.5958869155. The cubic root of 545670720 is about 817.1658651880.

It can be divided in two parts, 5456 and 70720, that added together give a square (76176 = 276²).

The spelling of 545670720 in words is "five hundred forty-five million, six hundred seventy thousand, seven hundred twenty".