122240340 has 120 divisors (see below), whose sum is σ = 390073992. Its totient is φ = 32037120.

The previous prime is 122240333. The next prime is 122240351. The reversal of 122240340 is 43042221.

122240340 is a `hidden beast` number, since 1 + 222 + 403 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2862864 + 119377476 = 1692^2 + 10926^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 98202 + ... + 99438.

Almost surely, 2^122240340 is an apocalyptic number.

122240340 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 122240340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195036996).

122240340 is an abundant number, since it is smaller than the sum of its proper divisors (267833652).

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

122240340 is a wasteful number, since it uses less digits than its factorization.

122240340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319 (or 1308 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 122240340 is about 11056.2353448179. The cubic root of 122240340 is about 496.2930381199.

Adding to 122240340 its reverse (43042221), we get a palindrome (165282561).

The spelling of 122240340 in words is "one hundred twenty-two million, two hundred forty thousand, three hundred forty".