63418540 has 12 divisors (see below), whose sum is σ = 133178976. Its totient is φ = 25367408.

The previous prime is 63418493. The next prime is 63418543. The reversal of 63418540 is 4581436.

It is a happy number.

It is a super-2 number, since 2×63418540² = 8043822431463200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (63418543) 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, 1585444 + ... + 1585483.

It is an arithmetic number, because the mean of its divisors is an integer number (11098248).

Almost surely, 2^63418540 is an apocalyptic number.

It is an amenable number.

63418540 is an abundant number, since it is smaller than the sum of its proper divisors (69760436).

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

63418540 is a wasteful number, since it uses less digits than its factorization.

63418540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170936 (or 3170934 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 63418540 is about 7963.5758299899. The cubic root of 63418540 is about 398.7849377969.

Adding to 63418540 its reverse (4581436), we get a palindrome (67999976).

The spelling of 63418540 in words is "sixty-three million, four hundred eighteen thousand, five hundred forty".