122453040 has 80 divisors (see below), whose sum is σ = 401947488. Its totient is φ = 30732288.

The previous prime is 122453003. The next prime is 122453041. The reversal of 122453040 is 40354221.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 122452998 and 122453016.

It is not an unprimeable number, because it can be changed into a prime (122453041) 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 15 ways as a sum of consecutive naturals, for example, 10927 + ... + 19086.

Almost surely, 2^122453040 is an apocalyptic number.

122453040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122453040 is an abundant number, since it is smaller than the sum of its proper divisors (279494448).

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

122453040 is a wasteful number, since it uses less digits than its factorization.

122453040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30046 (or 30040 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 122453040 is about 11065.8501706828. The cubic root of 122453040 is about 496.5807237347.

The spelling of 122453040 in words is "one hundred twenty-two million, four hundred fifty-three thousand, forty".