545423730 has 32 divisors (see below), whose sum is σ = 1331208000. Its totient is φ = 142980672.

The previous prime is 545423719. The next prime is 545423731. The reversal of 545423730 is 37324545.

It is a super-2 number, since 2×545423730² = 594974090494225800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 545423691 and 545423700.

It is not an unprimeable number, because it can be changed into a prime (545423731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152305 + ... + 155844.

It is an arithmetic number, because the mean of its divisors is an integer number (41600250).

Almost surely, 2^545423730 is an apocalyptic number.

545423730 is an abundant number, since it is smaller than the sum of its proper divisors (785784270).

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

545423730 is a wasteful number, since it uses less digits than its factorization.

545423730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308218.

The product of its (nonzero) digits is 50400, while the sum is 33.

The square root of 545423730 is about 23354.3085960600. The cubic root of 545423730 is about 817.0425537907.

The spelling of 545423730 in words is "five hundred forty-five million, four hundred twenty-three thousand, seven hundred thirty".