623226240 has 768 divisors, whose sum is σ = 2806876800. Its totient is φ = 123863040.

The previous prime is 623226229. The next prime is 623226293. The reversal of 623226240 is 42622326.

623226240 is a `hidden beast` number, since 6 + 2 + 32 + 2 + 624 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 15200620 + ... + 15200660.

Almost surely, 2^623226240 is an apocalyptic number.

623226240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623226240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1403438400).

623226240 is an abundant number, since it is smaller than the sum of its proper divisors (2183650560).

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

623226240 is a wasteful number, since it uses less digits than its factorization.

623226240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 623226240 is about 24964.4995944241. The cubic root of 623226240 is about 854.1783837959.

Adding to 623226240 its reverse (42622326), we get a palindrome (665848566).

The spelling of 623226240 in words is "six hundred twenty-three million, two hundred twenty-six thousand, two hundred forty".