63018940 has 12 divisors (see below), whose sum is σ = 132339816. Its totient is φ = 25207568.

The previous prime is 63018937. The next prime is 63018941. The reversal of 63018940 is 4981036.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63018941) 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, 1575454 + ... + 1575493.

It is an arithmetic number, because the mean of its divisors is an integer number (11028318).

Almost surely, 2^63018940 is an apocalyptic number.

It is an amenable number.

63018940 is an abundant number, since it is smaller than the sum of its proper divisors (69320876).

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

63018940 is a wasteful number, since it uses less digits than its factorization.

63018940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150956 (or 3150954 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 63018940 is about 7938.4469513879. The cubic root of 63018940 is about 397.9455915793.

Adding to 63018940 its reverse (4981036), we get a palindrome (67999976).

The spelling of 63018940 in words is "sixty-three million, eighteen thousand, nine hundred forty".