122740620 has 24 divisors (see below), whose sum is σ = 343673904. Its totient is φ = 32730816.

The previous prime is 122740573. The next prime is 122740637. The reversal of 122740620 is 26047221.

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, 1022779 + ... + 1022898.

It is an arithmetic number, because the mean of its divisors is an integer number (14319746).

Almost surely, 2^122740620 is an apocalyptic number.

122740620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122740620 is an abundant number, since it is smaller than the sum of its proper divisors (220933284).

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

122740620 is a wasteful number, since it uses less digits than its factorization.

122740620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045689 (or 2045687 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 122740620 is about 11078.8365815188. The cubic root of 122740620 is about 496.9691584541.

Adding to 122740620 its reverse (26047221), we get a palindrome (148787841).

The spelling of 122740620 in words is "one hundred twenty-two million, seven hundred forty thousand, six hundred twenty".