122005436 has 48 divisors (see below), whose sum is σ = 255192000. Its totient is φ = 49932288.

The previous prime is 122005427. The next prime is 122005469. The reversal of 122005436 is 634500221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77990 + ... + 79538.

It is an arithmetic number, because the mean of its divisors is an integer number (5316500).

Almost surely, 2^122005436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122005436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127596000).

122005436 is an abundant number, since it is smaller than the sum of its proper divisors (133186564).

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

122005436 is a wasteful number, since it uses less digits than its factorization.

122005436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686 (or 1684 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 122005436 is about 11045.6070906039. The cubic root of 122005436 is about 495.9749326128.

Adding to 122005436 its reverse (634500221), we get a palindrome (756505657).

The spelling of 122005436 in words is "one hundred twenty-two million, five thousand, four hundred thirty-six".