126007640 has 32 divisors (see below), whose sum is σ = 309292560. Its totient is φ = 45820800.

The previous prime is 126007633. The next prime is 126007643. The reversal of 126007640 is 46700621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126007643) 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 7 ways as a sum of consecutive naturals, for example, 142751 + ... + 143630.

Almost surely, 2^126007640 is an apocalyptic number.

126007640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126007640 is an abundant number, since it is smaller than the sum of its proper divisors (183284920).

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

126007640 is a wasteful number, since it uses less digits than its factorization.

126007640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286403 (or 286399 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 126007640 is about 11225.3124678113. The cubic root of 126007640 is about 501.3399259891.

The spelling of 126007640 in words is "one hundred twenty-six million, seven thousand, six hundred forty".