545202420 has 144 divisors (see below), whose sum is σ = 1819516608. Its totient is φ = 121551360.

The previous prime is 545202403. The next prime is 545202431. The reversal of 545202420 is 24202545.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118279 + ... + 122801.

It is an arithmetic number, because the mean of its divisors is an integer number (12635532).

Almost surely, 2^545202420 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 545202420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (909758304).

545202420 is an abundant number, since it is smaller than the sum of its proper divisors (1274314188).

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

545202420 is a wasteful number, since it uses less digits than its factorization.

545202420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4590 (or 4581 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 545202420 is about 23349.5700174543. The cubic root of 545202420 is about 816.9320316776.

Adding to 545202420 its reverse (24202545), we get a palindrome (569404965).

The spelling of 545202420 in words is "five hundred forty-five million, two hundred two thousand, four hundred twenty".