126289644 has 36 divisors (see below), whose sum is σ = 319091976. Its totient is φ = 38857728.

The previous prime is 126289643. The next prime is 126289649. The reversal of 126289644 is 446982621.

It is a junction number, because it is equal to n+sod(n) for n = 126289596 and 126289605.

It is not an unprimeable number, because it can be changed into a prime (126289643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29109 + ... + 33164.

It is an arithmetic number, because the mean of its divisors is an integer number (8863666).

Almost surely, 2^126289644 is an apocalyptic number.

It is an amenable number.

126289644 is an abundant number, since it is smaller than the sum of its proper divisors (192802332).

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

126289644 is a wasteful number, since it uses less digits than its factorization.

126289644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62306 (or 62291 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 126289644 is about 11237.8665234999. The cubic root of 126289644 is about 501.7136454621.

The spelling of 126289644 in words is "one hundred twenty-six million, two hundred eighty-nine thousand, six hundred forty-four".