122185340 has 24 divisors (see below), whose sum is σ = 257378352. Its totient is φ = 48723840.

The previous prime is 122185339. The next prime is 122185351. The reversal of 122185340 is 43581221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2609 + ... + 15848.

It is an arithmetic number, because the mean of its divisors is an integer number (10724098).

Almost surely, 2^122185340 is an apocalyptic number.

122185340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122185340 is an abundant number, since it is smaller than the sum of its proper divisors (135193012).

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

122185340 is a wasteful number, since it uses less digits than its factorization.

122185340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18797 (or 18795 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 122185340 is about 11053.7477807303. The cubic root of 122185340 is about 496.2185940317.

The spelling of 122185340 in words is "one hundred twenty-two million, one hundred eighty-five thousand, three hundred forty".