63890268 has 48 divisors (see below), whose sum is σ = 164898720. Its totient is φ = 19125504.

The previous prime is 63890261. The next prime is 63890317. The reversal of 63890268 is 86209836.

It is a super-2 number, since 2×63890268² = 8163932690223648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63890261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238 + ... + 11306.

It is an arithmetic number, because the mean of its divisors is an integer number (3435390).

Almost surely, 2^63890268 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 63890268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82449360).

63890268 is an abundant number, since it is smaller than the sum of its proper divisors (101008452).

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

63890268 is a wasteful number, since it uses less digits than its factorization.

63890268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11126 (or 11124 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 63890268 is about 7993.1388077526. The cubic root of 63890268 is about 399.7712608876.

The spelling of 63890268 in words is "sixty-three million, eight hundred ninety thousand, two hundred sixty-eight".