423605400 has 48 divisors (see below), whose sum is σ = 1313178600. Its totient is φ = 112961280.

The previous prime is 423605393. The next prime is 423605447. The reversal of 423605400 is 4506324.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 352405 + ... + 353604.

Almost surely, 2^423605400 is an apocalyptic number.

423605400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423605400 is an abundant number, since it is smaller than the sum of its proper divisors (889573200).

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

423605400 is a wasteful number, since it uses less digits than its factorization.

423605400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706028 (or 706019 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 423605400 is about 20581.6763165686. The cubic root of 423605400 is about 751.0240234206.

The spelling of 423605400 in words is "four hundred twenty-three million, six hundred five thousand, four hundred".