63201440 has 96 divisors (see below), whose sum is σ = 157988880. Its totient is φ = 23855104.

The previous prime is 63201407. The next prime is 63201451. The reversal of 63201440 is 4410236.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 53640976 + 9560464 = 7324^2 + 3092^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245792 + ... + 246048.

Almost surely, 2^63201440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63201440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78994440).

63201440 is an abundant number, since it is smaller than the sum of its proper divisors (94787440).

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

63201440 is a wasteful number, since it uses less digits than its factorization.

63201440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 63201440 is about 7949.9333330538. The cubic root of 63201440 is about 398.3293654983.

Adding to 63201440 its reverse (4410236), we get a palindrome (67611676).

The spelling of 63201440 in words is "sixty-three million, two hundred one thousand, four hundred forty".