623422254 has 64 divisors (see below), whose sum is σ = 1541030400. Its totient is φ = 163728000.

The previous prime is 623422223. The next prime is 623422271. The reversal of 623422254 is 452224326.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134772 + ... + 139320.

It is an arithmetic number, because the mean of its divisors is an integer number (24078600).

Almost surely, 2^623422254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 623422254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (770515200).

623422254 is an abundant number, since it is smaller than the sum of its proper divisors (917608146).

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

623422254 is a wasteful number, since it uses less digits than its factorization.

623422254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4825.

The product of its digits is 23040, while the sum is 30.

The square root of 623422254 is about 24968.4251405650. The cubic root of 623422254 is about 854.2679250469.

The spelling of 623422254 in words is "six hundred twenty-three million, four hundred twenty-two thousand, two hundred fifty-four".