122040408 has 32 divisors (see below), whose sum is σ = 348687360. Its totient is φ = 34868640.

The previous prime is 122040389. The next prime is 122040431. The reversal of 122040408 is 804040221.

It is a super-2 number, since 2×122040408² = 29787722369612928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363048 + ... + 363383.

It is an arithmetic number, because the mean of its divisors is an integer number (10896480).

Almost surely, 2^122040408 is an apocalyptic number.

It is an amenable number.

122040408 is an abundant number, since it is smaller than the sum of its proper divisors (226646952).

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

122040408 is a wasteful number, since it uses less digits than its factorization.

122040408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726447 (or 726443 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 122040408 is about 11047.1900499629. The cubic root of 122040408 is about 496.0223173274.

Adding to 122040408 its reverse (804040221), we get a palindrome (926080629).

The spelling of 122040408 in words is "one hundred twenty-two million, forty thousand, four hundred eight".