63104220 has 144 divisors (see below), whose sum is σ = 202954752. Its totient is φ = 15845760.

The previous prime is 63104219. The next prime is 63104227. The reversal of 63104220 is 2240136.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 63104193 and 63104202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63104227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 239809 + ... + 240071.

It is an arithmetic number, because the mean of its divisors is an integer number (1409408).

Almost surely, 2^63104220 is an apocalyptic number.

63104220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63104220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101477376).

63104220 is an abundant number, since it is smaller than the sum of its proper divisors (139850532).

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

63104220 is a wasteful number, since it uses less digits than its factorization.

63104220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 63104220 is about 7943.8164631366. The cubic root of 63104220 is about 398.1250164913.

Adding to 63104220 its reverse (2240136), we get a palindrome (65344356).

The spelling of 63104220 in words is "sixty-three million, one hundred four thousand, two hundred twenty".