122623400 has 48 divisors (see below), whose sum is σ = 289386240. Its totient is φ = 48312000.

The previous prime is 122623387. The next prime is 122623409. The reversal of 122623400 is 4326221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (122623409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8825 + ... + 17975.

It is an arithmetic number, because the mean of its divisors is an integer number (6028880).

Almost surely, 2^122623400 is an apocalyptic number.

122623400 is a gapful number since it is divisible by the number (10) 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 122623400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144693120).

122623400 is an abundant number, since it is smaller than the sum of its proper divisors (166762840).

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

122623400 is a wasteful number, since it uses less digits than its factorization.

122623400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9234 (or 9225 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 122623400 is about 11073.5450511568. The cubic root of 122623400 is about 496.8109025607.

Adding to 122623400 its reverse (4326221), we get a palindrome (126949621).

The spelling of 122623400 in words is "one hundred twenty-two million, six hundred twenty-three thousand, four hundred".