423727340 has 12 divisors (see below), whose sum is σ = 889827456. Its totient is φ = 169490928.

The previous prime is 423727319. The next prime is 423727349. The reversal of 423727340 is 43727324.

It is a junction number, because it is equal to n+sod(n) for n = 423727297 and 423727306.

It is not an unprimeable number, because it can be changed into a prime (423727349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10593164 + ... + 10593203.

It is an arithmetic number, because the mean of its divisors is an integer number (74152288).

Almost surely, 2^423727340 is an apocalyptic number.

It is an amenable number.

423727340 is an abundant number, since it is smaller than the sum of its proper divisors (466100116).

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

423727340 is a wasteful number, since it uses less digits than its factorization.

423727340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21186376 (or 21186374 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 32.

The square root of 423727340 is about 20584.6384471528. The cubic root of 423727340 is about 751.0960803265.

The spelling of 423727340 in words is "four hundred twenty-three million, seven hundred twenty-seven thousand, three hundred forty".