545807412 has 36 divisors (see below), whose sum is σ = 1386701316. Its totient is φ = 181009920.

The previous prime is 545807399. The next prime is 545807429. The reversal of 545807412 is 214708545.

545807412 is a `hidden beast` number, since 5 + 4 + 580 + 74 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 305061156 + 240746256 = 17466^2 + 15516^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31389 + ... + 45572.

It is an arithmetic number, because the mean of its divisors is an integer number (38519481).

Almost surely, 2^545807412 is an apocalyptic number.

It is an amenable number.

545807412 is an abundant number, since it is smaller than the sum of its proper divisors (840893904).

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

545807412 is a wasteful number, since it uses less digits than its factorization.

545807412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77168 (or 77163 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 545807412 is about 23362.5215248697. The cubic root of 545807412 is about 817.2340935820.

The spelling of 545807412 in words is "five hundred forty-five million, eight hundred seven thousand, four hundred twelve".