63344140 has 12 divisors (see below), whose sum is σ = 133022736. Its totient is φ = 25337648.

The previous prime is 63344131. The next prime is 63344143. The reversal of 63344140 is 4144336.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (63344143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583584 + ... + 1583623.

It is an arithmetic number, because the mean of its divisors is an integer number (11085228).

Almost surely, 2^63344140 is an apocalyptic number.

It is an amenable number.

63344140 is an abundant number, since it is smaller than the sum of its proper divisors (69678596).

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

63344140 is a wasteful number, since it uses less digits than its factorization.

63344140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167216 (or 3167214 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 63344140 is about 7958.9031907669. The cubic root of 63344140 is about 398.6289307926.

Adding to 63344140 its reverse (4144336), we get a palindrome (67488476).

The spelling of 63344140 in words is "sixty-three million, three hundred forty-four thousand, one hundred forty".