423433340 has 96 divisors (see below), whose sum is σ = 1023418368. Its totient is φ = 145728000.

The previous prime is 423433327. The next prime is 423433349. The reversal of 423433340 is 43334324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423433349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319880 + ... + 321200.

It is an arithmetic number, because the mean of its divisors is an integer number (10660608).

Almost surely, 2^423433340 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 423433340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511709184).

423433340 is an abundant number, since it is smaller than the sum of its proper divisors (599985028).

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

423433340 is a wasteful number, since it uses less digits than its factorization.

423433340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419 (or 1417 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 26.

The square root of 423433340 is about 20577.4959603932. The cubic root of 423433340 is about 750.9223260287.

Adding to 423433340 its reverse (43334324), we get a palindrome (466767664).

The spelling of 423433340 in words is "four hundred twenty-three million, four hundred thirty-three thousand, three hundred forty".