423107328 has 144 divisors (see below), whose sum is σ = 1296517376. Its totient is φ = 119992320.

The previous prime is 423107309. The next prime is 423107351. The reversal of 423107328 is 823701324.

It is a super-2 number, since 2×423107328² = 358039622014599168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423107295 and 423107304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1134150 + ... + 1134522.

Almost surely, 2^423107328 is an apocalyptic number.

423107328 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423107328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (648258688).

423107328 is an abundant number, since it is smaller than the sum of its proper divisors (873410048).

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

423107328 is a wasteful number, since it uses less digits than its factorization.

423107328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 596 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 423107328 is about 20569.5728686815. The cubic root of 423107328 is about 750.7295585401.

It can be divided in two parts, 42 and 3107328, that multiplied together give a square (130507776 = 11424²).

The spelling of 423107328 in words is "four hundred twenty-three million, one hundred seven thousand, three hundred twenty-eight".