63742844 has 24 divisors (see below), whose sum is σ = 126983808. Its totient is φ = 27713840.

The previous prime is 63742831. The next prime is 63742849. The reversal of 63742844 is 44824736.

It is a super-2 number, since 2×63742844² = 8126300322416672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63742798 and 63742807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63742849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30482 + ... + 32505.

It is an arithmetic number, because the mean of its divisors is an integer number (5290992).

Almost surely, 2^63742844 is an apocalyptic number.

It is an amenable number.

63742844 is a deficient number, since it is larger than the sum of its proper divisors (63240964).

63742844 is a wasteful number, since it uses less digits than its factorization.

63742844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63025 (or 63023 counting only the distinct ones).

The product of its digits is 129024, while the sum is 38.

The square root of 63742844 is about 7983.9115726566. The cubic root of 63742844 is about 399.4635391794.

The spelling of 63742844 in words is "sixty-three million, seven hundred forty-two thousand, eight hundred forty-four".