63418040 has 128 divisors (see below), whose sum is σ = 171417600. Its totient is φ = 20666880.

The previous prime is 63418039. The next prime is 63418049. The reversal of 63418040 is 4081436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63418049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 802721 + ... + 802799.

It is an arithmetic number, because the mean of its divisors is an integer number (1339200).

Almost surely, 2^63418040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63418040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85708800).

63418040 is an abundant number, since it is smaller than the sum of its proper divisors (107999560).

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

63418040 is a wasteful number, since it uses less digits than its factorization.

63418040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 63418040 is about 7963.5444369954. The cubic root of 63418040 is about 398.7838897701.

Adding to 63418040 its reverse (4081436), we get a palindrome (67499476).

The spelling of 63418040 in words is "sixty-three million, four hundred eighteen thousand, forty".