122400036 has 36 divisors (see below), whose sum is σ = 337528464. Its totient is φ = 37090800.

The previous prime is 122400029. The next prime is 122400041. The reversal of 122400036 is 630004221.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122399991 and 122400018.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154150 + ... + 154941.

Almost surely, 2^122400036 is an apocalyptic number.

It is an amenable number.

122400036 is an abundant number, since it is smaller than the sum of its proper divisors (215128428).

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

122400036 is a wasteful number, since it uses less digits than its factorization.

122400036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309112 (or 309107 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 122400036 is about 11063.4549757298. The cubic root of 122400036 is about 496.5090647998.

Adding to 122400036 its reverse (630004221), we get a palindrome (752404257).

The spelling of 122400036 in words is "one hundred twenty-two million, four hundred thousand, thirty-six".