423155000 has 40 divisors (see below), whose sum is σ = 991463880. Its totient is φ = 169260000.

The previous prime is 423154981. The next prime is 423155011. The reversal of 423155000 is 551324.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 37316 + ... + 47315.

It is an arithmetic number, because the mean of its divisors is an integer number (24786597).

Almost surely, 2^423155000 is an apocalyptic number.

423155000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423155000 is an abundant number, since it is smaller than the sum of its proper divisors (568308880).

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

423155000 is an equidigital number, since it uses as much as digits as its factorization.

423155000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84657 (or 84638 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 423155000 is about 20570.7316350197. The cubic root of 423155000 is about 750.7577526752.

The spelling of 423155000 in words is "four hundred twenty-three million, one hundred fifty-five thousand".