423401332 has 24 divisors (see below), whose sum is σ = 747358920. Its totient is φ = 209879040.

The previous prime is 423401327. The next prime is 423401357. The reversal of 423401332 is 233104324.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 170145936 + 253255396 = 13044^2 + 15914^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246894 + ... + 248602.

It is an arithmetic number, because the mean of its divisors is an integer number (31139955).

Almost surely, 2^423401332 is an apocalyptic number.

It is an amenable number.

423401332 is a deficient number, since it is larger than the sum of its proper divisors (323957588).

423401332 is a wasteful number, since it uses less digits than its factorization.

423401332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211 (or 2209 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 423401332 is about 20576.7182028622. The cubic root of 423401332 is about 750.9034044141.

Adding to 423401332 its reverse (233104324), we get a palindrome (656505656).

The spelling of 423401332 in words is "four hundred twenty-three million, four hundred one thousand, three hundred thirty-two".