623545368 has 16 divisors (see below), whose sum is σ = 1558863480. Its totient is φ = 207848448.

The previous prime is 623545367. The next prime is 623545369. The reversal of 623545368 is 863545326.

It is an interprime number because it is at equal distance from previous prime (623545367) and next prime (623545369).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623545367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12990505 + ... + 12990552.

Almost surely, 2^623545368 is an apocalyptic number.

It is an amenable number.

623545368 is an abundant number, since it is smaller than the sum of its proper divisors (935318112).

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

623545368 is a wasteful number, since it uses less digits than its factorization.

623545368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25981066 (or 25981062 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

The square root of 623545368 is about 24970.8904126385. The cubic root of 623545368 is about 854.3241552174.

Subtracting from 623545368 its sum of digits (42), we obtain a palindrome (623545326).

The spelling of 623545368 in words is "six hundred twenty-three million, five hundred forty-five thousand, three hundred sixty-eight".