63402220 has 24 divisors (see below), whose sum is σ = 152165664. Its totient is φ = 21737856.

The previous prime is 63402217. The next prime is 63402239. The reversal of 63402220 is 2220436.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226297 + ... + 226576.

It is an arithmetic number, because the mean of its divisors is an integer number (6340236).

Almost surely, 2^63402220 is an apocalyptic number.

It is an amenable number.

63402220 is an abundant number, since it is smaller than the sum of its proper divisors (88763444).

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

63402220 is a wasteful number, since it uses less digits than its factorization.

63402220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452889 (or 452887 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 63402220 is about 7962.5510987371. The cubic root of 63402220 is about 398.7507273566.

Adding to 63402220 its reverse (2220436), we get a palindrome (65622656).

The spelling of 63402220 in words is "sixty-three million, four hundred two thousand, two hundred twenty".