545343420 has 24 divisors (see below), whose sum is σ = 1526961744. Its totient is φ = 145424896.

The previous prime is 545343401. The next prime is 545343439. The reversal of 545343420 is 24343545.

It is an interprime number because it is at equal distance from previous prime (545343401) and next prime (545343439).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4544469 + ... + 4544588.

It is an arithmetic number, because the mean of its divisors is an integer number (63623406).

Almost surely, 2^545343420 is an apocalyptic number.

It is an amenable number.

545343420 is an abundant number, since it is smaller than the sum of its proper divisors (981618324).

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

545343420 is a wasteful number, since it uses less digits than its factorization.

545343420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9089069 (or 9089067 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

The square root of 545343420 is about 23352.5891498138. The cubic root of 545343420 is about 817.0024504700.

Adding to 545343420 its reverse (24343545), we get a palindrome (569686965).

The spelling of 545343420 in words is "five hundred forty-five million, three hundred forty-three thousand, four hundred twenty".