623103040 has 112 divisors (see below), whose sum is σ = 1795588992. Its totient is φ = 201056256.

The previous prime is 623103011. The next prime is 623103049. The reversal of 623103040 is 40301326.

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 623102999 and 623103017.

It is not an unprimeable number, because it can be changed into a prime (623103049) 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 15 ways as a sum of consecutive naturals, for example, 29899 + ... + 46261.

Almost surely, 2^623103040 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 623103040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (897794496).

623103040 is an abundant number, since it is smaller than the sum of its proper divisors (1172485952).

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

623103040 is a wasteful number, since it uses less digits than its factorization.

623103040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16404 (or 16394 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 623103040 is about 24962.0319685718. The cubic root of 623103040 is about 854.1220951347.

Adding to 623103040 its reverse (40301326), we get a palindrome (663404366).

The spelling of 623103040 in words is "six hundred twenty-three million, one hundred three thousand, forty".