423427620 has 144 divisors (see below), whose sum is σ = 1504657728. Its totient is φ = 87978240.

The previous prime is 423427607. The next prime is 423427649. The reversal of 423427620 is 26724324.

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 47 ways as a sum of consecutive naturals, for example, 25794 + ... + 38886.

It is an arithmetic number, because the mean of its divisors is an integer number (10449012).

Almost surely, 2^423427620 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 423427620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752328864).

423427620 is an abundant number, since it is smaller than the sum of its proper divisors (1081230108).

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

423427620 is a wasteful number, since it uses less digits than its factorization.

423427620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13130 (or 13121 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 30.

The square root of 423427620 is about 20577.3569731392. The cubic root of 423427620 is about 750.9189447054.

The spelling of 423427620 in words is "four hundred twenty-three million, four hundred twenty-seven thousand, six hundred twenty".