126242240 has 28 divisors (see below), whose sum is σ = 300615096. Its totient is φ = 50496768.

The previous prime is 126242231. The next prime is 126242243. The reversal of 126242240 is 42242621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126242243) 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, 196934 + ... + 197573.

Almost surely, 2^126242240 is an apocalyptic number.

126242240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126242240 is an abundant number, since it is smaller than the sum of its proper divisors (174372856).

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

126242240 is an equidigital number, since it uses as much as digits as its factorization.

126242240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394524 (or 394514 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 126242240 is about 11235.7572063480. The cubic root of 126242240 is about 501.6508633018.

Adding to 126242240 its reverse (42242621), we get a palindrome (168484861).

The spelling of 126242240 in words is "one hundred twenty-six million, two hundred forty-two thousand, two hundred forty".