122279430 has 128 divisors (see below), whose sum is σ = 369266688. Its totient is φ = 25224192.

The previous prime is 122279411. The next prime is 122279491. The reversal of 122279430 is 34972221.

It is a super-2 number, since 2×122279430² = 29904518002249800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 127834 + ... + 128786.

It is an arithmetic number, because the mean of its divisors is an integer number (2884896).

Almost surely, 2^122279430 is an apocalyptic number.

122279430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122279430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184633344).

122279430 is an abundant number, since it is smaller than the sum of its proper divisors (246987258).

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

122279430 is a wasteful number, since it uses less digits than its factorization.

122279430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 122279430 is about 11058.0029842644. The cubic root of 122279430 is about 496.3459339896.

The spelling of 122279430 in words is "one hundred twenty-two million, two hundred seventy-nine thousand, four hundred thirty".