122930420 has 24 divisors (see below), whose sum is σ = 267057000. Its totient is φ = 47476352.

The previous prime is 122930393. The next prime is 122930429. The reversal of 122930420 is 24039221.

It can be written as a sum of positive squares in 4 ways, for example, as 24960016 + 97970404 = 4996^2 + 9898^2 .

It is a super-2 number, since 2×122930420² = 30223776322752800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122930429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105395 + ... + 106554.

It is an arithmetic number, because the mean of its divisors is an integer number (11127375).

Almost surely, 2^122930420 is an apocalyptic number.

122930420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122930420 is an abundant number, since it is smaller than the sum of its proper divisors (144126580).

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

122930420 is a wasteful number, since it uses less digits than its factorization.

122930420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211987 (or 211985 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 122930420 is about 11087.3991539946. The cubic root of 122930420 is about 497.2251893381.

Adding to 122930420 its reverse (24039221), we get a palindrome (146969641).

The spelling of 122930420 in words is "one hundred twenty-two million, nine hundred thirty thousand, four hundred twenty".