122304440 has 16 divisors (see below), whose sum is σ = 275185080. Its totient is φ = 48921760.

The previous prime is 122304433. The next prime is 122304449. The reversal of 122304440 is 44403221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122304449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1528766 + ... + 1528845.

Almost surely, 2^122304440 is an apocalyptic number.

122304440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122304440 is an abundant number, since it is smaller than the sum of its proper divisors (152880640).

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

122304440 is a wasteful number, since it uses less digits than its factorization.

122304440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057622 (or 3057618 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 122304440 is about 11059.1337816305. The cubic root of 122304440 is about 496.3797711487.

Adding to 122304440 its reverse (44403221), we get a palindrome (166707661).

The spelling of 122304440 in words is "one hundred twenty-two million, three hundred four thousand, four hundred forty".