126940328 has 8 divisors (see below), whose sum is σ = 238013130. Its totient is φ = 63470160.

The previous prime is 126940313. The next prime is 126940339. The reversal of 126940328 is 823049621.

It can be written as a sum of positive squares in only one way, i.e., 98446084 + 28494244 = 9922^2 + 5338^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×126940328² = 32227693745495168, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7933763 + ... + 7933778.

Almost surely, 2^126940328 is an apocalyptic number.

It is an amenable number.

126940328 is a deficient number, since it is larger than the sum of its proper divisors (111072802).

126940328 is a wasteful number, since it uses less digits than its factorization.

126940328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15867547 (or 15867543 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 126940328 is about 11266.7798416406. The cubic root of 126940328 is about 502.5738320430.

Adding to 126940328 its reverse (823049621), we get a palindrome (949989949).

The spelling of 126940328 in words is "one hundred twenty-six million, nine hundred forty thousand, three hundred twenty-eight".