545339992 has 8 divisors (see below), whose sum is σ = 1022512500. Its totient is φ = 272669992.

The previous prime is 545339987. The next prime is 545339999. The reversal of 545339992 is 299933545.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545339999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34083742 + ... + 34083757.

Almost surely, 2^545339992 is an apocalyptic number.

It is an amenable number.

545339992 is a deficient number, since it is larger than the sum of its proper divisors (477172508).

545339992 is a wasteful number, since it uses less digits than its factorization.

545339992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68167505 (or 68167501 counting only the distinct ones).

The product of its digits is 1312200, while the sum is 49.

The square root of 545339992 is about 23352.5157531260. The cubic root of 545339992 is about 817.0007385883. Note that the first 3 decimals are identical.

The spelling of 545339992 in words is "five hundred forty-five million, three hundred thirty-nine thousand, nine hundred ninety-two".