545394900 has 72 divisors (see below), whose sum is σ = 1603932064. Its totient is φ = 143049600.

The previous prime is 545394869. The next prime is 545394917. The reversal of 545394900 is 9493545.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3399 + ... + 33201.

Almost surely, 2^545394900 is an apocalyptic number.

545394900 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545394900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (801966032).

545394900 is an abundant number, since it is smaller than the sum of its proper divisors (1058537164).

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

545394900 is a wasteful number, since it uses less digits than its factorization.

545394900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29881 (or 29874 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 39.

The square root of 545394900 is about 23353.6913570425. The cubic root of 545394900 is about 817.0281577957.

The spelling of 545394900 in words is "five hundred forty-five million, three hundred ninety-four thousand, nine hundred".