63920220 has 192 divisors, whose sum is σ = 230307840. Its totient is φ = 12874752.

The previous prime is 63920203. The next prime is 63920239. The reversal of 63920220 is 2202936.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 125326 + ... + 125834.

It is an arithmetic number, because the mean of its divisors is an integer number (1199520).

Almost surely, 2^63920220 is an apocalyptic number.

63920220 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 63920220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115153920).

63920220 is an abundant number, since it is smaller than the sum of its proper divisors (166387620).

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

63920220 is a wasteful number, since it uses less digits than its factorization.

63920220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 63920220 is about 7995.0121951127. The cubic root of 63920220 is about 399.8337225558.

The spelling of 63920220 in words is "sixty-three million, nine hundred twenty thousand, two hundred twenty".