63140220 has 216 divisors, whose sum is σ = 227730048. Its totient is φ = 14065920.

The previous prime is 63140201. The next prime is 63140237. The reversal of 63140220 is 2204136.

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 = 63140193 and 63140202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 283029 + ... + 283251.

Almost surely, 2^63140220 is an apocalyptic number.

63140220 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 63140220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113865024).

63140220 is an abundant number, since it is smaller than the sum of its proper divisors (164589828).

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

63140220 is a wasteful number, since it uses less digits than its factorization.

63140220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 257 counting only the distinct ones).

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

The square root of 63140220 is about 7946.0820534399. The cubic root of 63140220 is about 398.2007101928.

Adding to 63140220 its reverse (2204136), we get a palindrome (65344356).

The spelling of 63140220 in words is "sixty-three million, one hundred forty thousand, two hundred twenty".