126442644 has 24 divisors (see below), whose sum is σ = 310561440. Its totient is φ = 39929184.

The previous prime is 126442633. The next prime is 126442669. The reversal of 126442644 is 446244621.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 277059 + ... + 277514.

It is an arithmetic number, because the mean of its divisors is an integer number (12940060).

Almost surely, 2^126442644 is an apocalyptic number.

It is an amenable number.

126442644 is an abundant number, since it is smaller than the sum of its proper divisors (184118796).

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

126442644 is a wasteful number, since it uses less digits than its factorization.

126442644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554599 (or 554597 counting only the distinct ones).

The product of its digits is 36864, while the sum is 33.

The square root of 126442644 is about 11244.6718049039. The cubic root of 126442644 is about 501.9161725182.

The spelling of 126442644 in words is "one hundred twenty-six million, four hundred forty-two thousand, six hundred forty-four".