126244420 has 12 divisors (see below), whose sum is σ = 265113324. Its totient is φ = 50497760.

The previous prime is 126244409. The next prime is 126244421. The reversal of 126244420 is 24442621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24920064 + 101324356 = 4992^2 + 10066^2 .

It is a super-2 number, since 2×126244420² = 31875307162272800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126244421) 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, 3156091 + ... + 3156130.

It is an arithmetic number, because the mean of its divisors is an integer number (22092777).

Almost surely, 2^126244420 is an apocalyptic number.

126244420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126244420 is an abundant number, since it is smaller than the sum of its proper divisors (138868904).

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

126244420 is a wasteful number, since it uses less digits than its factorization.

126244420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6312230 (or 6312228 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 126244420 is about 11235.8542176374. The cubic root of 126244420 is about 501.6537508525.

The spelling of 126244420 in words is "one hundred twenty-six million, two hundred forty-four thousand, four hundred twenty".