126838740 has 48 divisors (see below), whose sum is σ = 405885312. Its totient is φ = 28991616.

The previous prime is 126838739. The next prime is 126838781. The reversal of 126838740 is 47838621.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 150579 + ... + 151418.

It is an arithmetic number, because the mean of its divisors is an integer number (8455944).

Almost surely, 2^126838740 is an apocalyptic number.

126838740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126838740 is an abundant number, since it is smaller than the sum of its proper divisors (279046572).

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

126838740 is a wasteful number, since it uses less digits than its factorization.

126838740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302016 (or 302014 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 126838740 is about 11262.2706413938. The cubic root of 126838740 is about 502.4397294115.

The spelling of 126838740 in words is "one hundred twenty-six million, eight hundred thirty-eight thousand, seven hundred forty".