423545700 has 72 divisors (see below), whose sum is σ = 1253996128. Its totient is φ = 110315520.

The previous prime is 423545677. The next prime is 423545767. The reversal of 423545700 is 7545324.

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

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, 3517 + ... + 29316.

Almost surely, 2^423545700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423545700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (626998064).

423545700 is an abundant number, since it is smaller than the sum of its proper divisors (830450428).

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

423545700 is a wasteful number, since it uses less digits than its factorization.

423545700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32893 (or 32886 counting only the distinct ones).

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

The square root of 423545700 is about 20580.2259462815. The cubic root of 423545700 is about 750.9887403949.

The spelling of 423545700 in words is "four hundred twenty-three million, five hundred forty-five thousand, seven hundred".