545371764 has 72 divisors (see below), whose sum is σ = 1567399680. Its totient is φ = 146651904.

The previous prime is 545371753. The next prime is 545371769. The reversal of 545371764 is 467173545.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545371769) 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, 17284 + ... + 37275.

It is an arithmetic number, because the mean of its divisors is an integer number (21769440).

Almost surely, 2^545371764 is an apocalyptic number.

It is an amenable number.

545371764 is an abundant number, since it is smaller than the sum of its proper divisors (1022027916).

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

545371764 is a wasteful number, since it uses less digits than its factorization.

545371764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54597 (or 54588 counting only the distinct ones).

The product of its digits is 352800, while the sum is 42.

The square root of 545371764 is about 23353.1960125376. The cubic root of 545371764 is about 817.0166046802.

The spelling of 545371764 in words is "five hundred forty-five million, three hundred seventy-one thousand, seven hundred sixty-four".