63396540 has 192 divisors, whose sum is σ = 214502400. Its totient is φ = 15489792.

The previous prime is 63396493. The next prime is 63396563. The reversal of 63396540 is 4569336.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 63396495 and 63396504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 379537 + ... + 379703.

It is an arithmetic number, because the mean of its divisors is an integer number (1117200).

Almost surely, 2^63396540 is an apocalyptic number.

63396540 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 63396540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107251200).

63396540 is an abundant number, since it is smaller than the sum of its proper divisors (151105860).

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

63396540 is a wasteful number, since it uses less digits than its factorization.

63396540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 36.

The square root of 63396540 is about 7962.1944211379. The cubic root of 63396540 is about 398.7388194046.

It can be divided in two parts, 63396 and 540, that added together give a palindrome (63936).

The spelling of 63396540 in words is "sixty-three million, three hundred ninety-six thousand, five hundred forty".