122748432 has 40 divisors (see below), whose sum is σ = 335755296. Its totient is φ = 38509056.

The previous prime is 122748427. The next prime is 122748433. The reversal of 122748432 is 234847221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122748393 and 122748402.

It is not an unprimeable number, because it can be changed into a prime (122748433) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 74398 + ... + 76029.

Almost surely, 2^122748432 is an apocalyptic number.

122748432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122748432 is an abundant number, since it is smaller than the sum of its proper divisors (213006864).

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

122748432 is a wasteful number, since it uses less digits than its factorization.

122748432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150455 (or 150449 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 122748432 is about 11079.1891400048. The cubic root of 122748432 is about 496.9797016650.

It can be divided in two parts, 12274 and 8432, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 122748432 in words is "one hundred twenty-two million, seven hundred forty-eight thousand, four hundred thirty-two".