63238140 has 144 divisors (see below), whose sum is σ = 226437120. Its totient is φ = 13979520.

The previous prime is 63238139. The next prime is 63238163. The reversal of 63238140 is 4183236.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38251 + ... + 39869.

It is an arithmetic number, because the mean of its divisors is an integer number (1572480).

Almost surely, 2^63238140 is an apocalyptic number.

63238140 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 63238140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113218560).

63238140 is an abundant number, since it is smaller than the sum of its proper divisors (163198980).

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

63238140 is a wasteful number, since it uses less digits than its factorization.

63238140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 63238140 is about 7952.2411935253. The cubic root of 63238140 is about 398.4064516060.

The spelling of 63238140 in words is "sixty-three million, two hundred thirty-eight thousand, one hundred forty".