423521562 has 8 divisors (see below), whose sum is σ = 847043136. Its totient is φ = 141173852.

The previous prime is 423521557. The next prime is 423521599. The reversal of 423521562 is 265125324.

It is a sphenic number, since it is the product of 3 distinct primes.

423521562 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35293458 + ... + 35293469.

It is an arithmetic number, because the mean of its divisors is an integer number (105880392).

Almost surely, 2^423521562 is an apocalyptic number.

423521562 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

423521562 is a wasteful number, since it uses less digits than its factorization.

423521562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70586932.

The product of its digits is 14400, while the sum is 30.

The square root of 423521562 is about 20579.6395012158. The cubic root of 423521562 is about 750.9744737639.

Adding to 423521562 its reverse (265125324), we get a palindrome (688646886).

The spelling of 423521562 in words is "four hundred twenty-three million, five hundred twenty-one thousand, five hundred sixty-two".