63042409 has 8 divisors (see below), whose sum is σ = 66926088. Its totient is φ = 59178240.

The previous prime is 63042407. The next prime is 63042431. The reversal of 63042409 is 90424036.

It can be written as a sum of positive squares in 4 ways, for example, as 15776784 + 47265625 = 3972^2 + 6875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63042409 - 2¹ = 63042407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63042403) 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, 2079 + ... + 11419.

It is an arithmetic number, because the mean of its divisors is an integer number (8365761).

Almost surely, 2^63042409 is an apocalyptic number.

It is an amenable number.

63042409 is a deficient number, since it is larger than the sum of its proper divisors (3883679).

63042409 is a wasteful number, since it uses less digits than its factorization.

63042409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9755.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 63042409 is about 7939.9249996458. The cubic root of 63042409 is about 397.9949853328.

The spelling of 63042409 in words is "sixty-three million, forty-two thousand, four hundred nine".