545424040 has 128 divisors (see below), whose sum is σ = 1454112000. Its totient is φ = 180246528.

The previous prime is 545424029. The next prime is 545424079. The reversal of 545424040 is 40424545.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 1071306 + ... + 1071814.

It is an arithmetic number, because the mean of its divisors is an integer number (11360250).

Almost surely, 2^545424040 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 545424040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727056000).

545424040 is an abundant number, since it is smaller than the sum of its proper divisors (908687960).

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

545424040 is a wasteful number, since it uses less digits than its factorization.

545424040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 545424040 is about 23354.3152329500. The cubic root of 545424040 is about 817.0427085836.

Adding to 545424040 its reverse (40424545), we get a palindrome (585848585).

The spelling of 545424040 in words is "five hundred forty-five million, four hundred twenty-four thousand, forty".