126785644 has 12 divisors (see below), whose sum is σ = 222171768. Its totient is φ = 63308000.

The previous prime is 126785611. The next prime is 126785647. The reversal of 126785644 is 446587621.

It is a self number, because there is not a number n which added to its sum of digits gives 126785644.

It is not an unprimeable number, because it can be changed into a prime (126785647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17782 + ... + 23869.

It is an arithmetic number, because the mean of its divisors is an integer number (18514314).

Almost surely, 2^126785644 is an apocalyptic number.

It is an amenable number.

126785644 is a deficient number, since it is larger than the sum of its proper divisors (95386124).

126785644 is a wasteful number, since it uses less digits than its factorization.

126785644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42416 (or 42414 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 126785644 is about 11259.9131435371. The cubic root of 126785644 is about 502.3696108152.

The spelling of 126785644 in words is "one hundred twenty-six million, seven hundred eighty-five thousand, six hundred forty-four".