63220040 has 32 divisors (see below), whose sum is σ = 153188280. Its totient is φ = 23342592.

The previous prime is 63220037. The next prime is 63220063. The reversal of 63220040 is 4002236.

It can be written as a sum of positive squares in 4 ways, for example, as 30980356 + 32239684 = 5566^2 + 5678^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60269 + ... + 61308.

Almost surely, 2^63220040 is an apocalyptic number.

It is an amenable number.

63220040 is an abundant number, since it is smaller than the sum of its proper divisors (89968240).

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

63220040 is a wasteful number, since it uses less digits than its factorization.

63220040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121601 (or 121597 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 63220040 is about 7951.1030681283. The cubic root of 63220040 is about 398.3684373903.

Adding to 63220040 its reverse (4002236), we get a palindrome (67222276).

The spelling of 63220040 in words is "sixty-three million, two hundred twenty thousand, forty".