545423700 has 36 divisors (see below), whose sum is σ = 1578093440. Its totient is φ = 145446240.

The previous prime is 545423657. The next prime is 545423707. The reversal of 545423700 is 7324545.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545423707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 908740 + ... + 909339.

Almost surely, 2^545423700 is an apocalyptic number.

545423700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

545423700 is an abundant number, since it is smaller than the sum of its proper divisors (1032669740).

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

545423700 is a wasteful number, since it uses less digits than its factorization.

545423700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818096 (or 1818089 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 545423700 is about 23354.3079537802. The cubic root of 545423700 is about 817.0425388107.

The spelling of 545423700 in words is "five hundred forty-five million, four hundred twenty-three thousand, seven hundred".