122642450 has 96 divisors (see below), whose sum is σ = 276946560. Its totient is φ = 39513600.

The previous prime is 122642447. The next prime is 122642453. The reversal of 122642450 is 54246221.

It is an interprime number because it is at equal distance from previous prime (122642447) and next prime (122642453).

It is not an unprimeable number, because it can be changed into a prime (122642453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 436310 + ... + 436590.

It is an arithmetic number, because the mean of its divisors is an integer number (2884860).

Almost surely, 2^122642450 is an apocalyptic number.

122642450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122642450 is an abundant number, since it is smaller than the sum of its proper divisors (154304110).

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

122642450 is a wasteful number, since it uses less digits than its factorization.

122642450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 122642450 is about 11074.4051759000. The cubic root of 122642450 is about 496.8366283673.

Adding to 122642450 its reverse (54246221), we get a palindrome (176888671).

It can be divided in two parts, 12 and 2642450, that added together give a palindrome (2642462).

The spelling of 122642450 in words is "one hundred twenty-two million, six hundred forty-two thousand, four hundred fifty".