63731242 has 16 divisors (see below), whose sum is σ = 98412552. Its totient is φ = 30931200.

The previous prime is 63731219. The next prime is 63731251. The reversal of 63731242 is 24213736.

It can be written as a sum of positive squares in 4 ways, for example, as 61168041 + 2563201 = 7821^2 + 1601^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63731242.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43758 + ... + 45190.

Almost surely, 2^63731242 is an apocalyptic number.

63731242 is a deficient number, since it is larger than the sum of its proper divisors (34681310).

63731242 is a wasteful number, since it uses less digits than its factorization.

63731242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073.

The product of its digits is 6048, while the sum is 28.

The square root of 63731242 is about 7983.1849533880. The cubic root of 63731242 is about 399.4393019114.

Adding to 63731242 its reverse (24213736), we get a palindrome (87944978).

The spelling of 63731242 in words is "sixty-three million, seven hundred thirty-one thousand, two hundred forty-two".