623212352 has 56 divisors (see below), whose sum is σ = 1415856960. Its totient is φ = 266618880.

The previous prime is 623212351. The next prime is 623212357. The reversal of 623212352 is 253212326.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623212351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393899 + ... + 395477.

It is an arithmetic number, because the mean of its divisors is an integer number (25283160).

Almost surely, 2^623212352 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 623212352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (707928480).

623212352 is an abundant number, since it is smaller than the sum of its proper divisors (792644608).

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

623212352 is a wasteful number, since it uses less digits than its factorization.

623212352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479 (or 2469 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 623212352 is about 24964.2214378899. The cubic root of 623212352 is about 854.1720388997.

Subtracting from 623212352 its sum of digits (26), we obtain a palindrome (623212326).

Adding to 623212352 its reverse (253212326), we get a palindrome (876424678).

The spelling of 623212352 in words is "six hundred twenty-three million, two hundred twelve thousand, three hundred fifty-two".