126738340 has 12 divisors (see below), whose sum is σ = 266150556. Its totient is φ = 50695328.

The previous prime is 126738331. The next prime is 126738343. The reversal of 126738340 is 43837621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43454464 + 83283876 = 6592^2 + 9126^2 .

It is a junction number, because it is equal to n+sod(n) for n = 126738296 and 126738305.

It is not an unprimeable number, because it can be changed into a prime (126738343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3168439 + ... + 3168478.

It is an arithmetic number, because the mean of its divisors is an integer number (22179213).

Almost surely, 2^126738340 is an apocalyptic number.

126738340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126738340 is an abundant number, since it is smaller than the sum of its proper divisors (139412216).

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

126738340 is a wasteful number, since it uses less digits than its factorization.

126738340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6336926 (or 6336924 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 126738340 is about 11257.8123985080. The cubic root of 126738340 is about 502.3071246445.

The spelling of 126738340 in words is "one hundred twenty-six million, seven hundred thirty-eight thousand, three hundred forty".