623225240 has 64 divisors (see below), whose sum is σ = 1579115520. Its totient is φ = 219312000.

The previous prime is 623225237. The next prime is 623225261. The reversal of 623225240 is 42522326.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9206 + ... + 36485.

It is an arithmetic number, because the mean of its divisors is an integer number (24673680).

Almost surely, 2^623225240 is an apocalyptic number.

It is an amenable number.

623225240 is an abundant number, since it is smaller than the sum of its proper divisors (955890280).

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

623225240 is a wasteful number, since it uses less digits than its factorization.

623225240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45744 (or 45740 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 623225240 is about 24964.4795659753. The cubic root of 623225240 is about 854.1779269373.

Adding to 623225240 its reverse (42522326), we get a palindrome (665747566).

The spelling of 623225240 in words is "six hundred twenty-three million, two hundred twenty-five thousand, two hundred forty".