63239040 has 96 divisors (see below), whose sum is σ = 218392200. Its totient is φ = 16862208.

The previous prime is 63239003. The next prime is 63239041. The reversal of 63239040 is 4093236.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 63238995 and 63239013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63239041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 271 + ... + 11249.

Almost surely, 2^63239040 is an apocalyptic number.

63239040 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 63239040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109196100).

63239040 is an abundant number, since it is smaller than the sum of its proper divisors (155153160).

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

63239040 is a wasteful number, since it uses less digits than its factorization.

63239040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11004 (or 10989 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 63239040 is about 7952.2977811448. The cubic root of 63239040 is about 398.4083416263.

The spelling of 63239040 in words is "sixty-three million, two hundred thirty-nine thousand, forty".