122440000 has 70 divisors (see below), whose sum is σ = 303710594. Its totient is φ = 48960000.

The previous prime is 122439979. The next prime is 122440013. The reversal of 122440000 is 44221.

It can be written as a sum of positive squares in 5 ways, for example, as 17909824 + 104530176 = 4232^2 + 10224^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 38470 + ... + 41530.

Almost surely, 2^122440000 is an apocalyptic number.

122440000 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 122440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151855297).

122440000 is an abundant number, since it is smaller than the sum of its proper divisors (181270594).

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

122440000 is an frugal number, since it uses more digits than its factorization.

122440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3093 (or 3068 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 122440000 is about 11065.2609548984. The cubic root of 122440000 is about 496.5630961813.

Adding to 122440000 its reverse (44221), we get a palindrome (122484221).

The spelling of 122440000 in words is "one hundred twenty-two million, four hundred forty thousand".