2400122 has 4 divisors (see below), whose sum is σ = 3600186. Its totient is φ = 1200060.

The previous prime is 2400109. The next prime is 2400143. The reversal of 2400122 is 2210042.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2128681 + 271441 = 1459^2 + 521^2 .

It is a super-2 number, since 2×2400122² = 11521171229768, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 600029 + ... + 600032.

2^2400122 is an apocalyptic number.

2400122 is a deficient number, since it is larger than the sum of its proper divisors (1200064).

2400122 is a wasteful number, since it uses less digits than its factorization.

2400122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200063.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2400122 is about 1549.2327133133. The cubic root of 2400122 is about 133.8888586119. Note that the first 4 decimals are identical.

Adding to 2400122 its reverse (2210042), we get a palindrome (4610164).

The spelling of 2400122 in words is "two million, four hundred thousand, one hundred twenty-two".