545401472 has 64 divisors (see below), whose sum is σ = 1354674240. Its totient is φ = 212490240.

The previous prime is 545401471. The next prime is 545401477. The reversal of 545401472 is 274104545.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (545401471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17813 + ... + 37524.

It is an arithmetic number, because the mean of its divisors is an integer number (21166785).

Almost surely, 2^545401472 is an apocalyptic number.

It is an amenable number.

545401472 is an abundant number, since it is smaller than the sum of its proper divisors (809272768).

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

545401472 is a wasteful number, since it uses less digits than its factorization.

545401472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55369 (or 55357 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 32.

The square root of 545401472 is about 23353.8320624261. The cubic root of 545401472 is about 817.0314395080.

The spelling of 545401472 in words is "five hundred forty-five million, four hundred one thousand, four hundred seventy-two".