126640024 has 32 divisors (see below), whose sum is σ = 283173120. Its totient is φ = 51914016.

The previous prime is 126640009. The next prime is 126640027. The reversal of 126640024 is 420046621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126640027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47874 + ... + 50449.

It is an arithmetic number, because the mean of its divisors is an integer number (8849160).

Almost surely, 2^126640024 is an apocalyptic number.

126640024 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

126640024 is an abundant number, since it is smaller than the sum of its proper divisors (156533096).

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

126640024 is a wasteful number, since it uses less digits than its factorization.

126640024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98359 (or 98355 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 126640024 is about 11253.4449836483. Note that the first 3 decimals coincide. The cubic root of 126640024 is about 502.1772044675.

Adding to 126640024 its reverse (420046621), we get a palindrome (546686645).

The spelling of 126640024 in words is "one hundred twenty-six million, six hundred forty thousand, twenty-four".