63672840 has 192 divisors, whose sum is σ = 258111360. Its totient is φ = 13224960.

The previous prime is 63672839. The next prime is 63672883. The reversal of 63672840 is 4827636.

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 = 63672795 and 63672804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26572 + ... + 28868.

It is an arithmetic number, because the mean of its divisors is an integer number (1344330).

Almost surely, 2^63672840 is an apocalyptic number.

63672840 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 63672840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129055680).

63672840 is an abundant number, since it is smaller than the sum of its proper divisors (194438520).

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

63672840 is a wasteful number, since it uses less digits than its factorization.

63672840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332 (or 2325 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 63672840 is about 7979.5263017299. The cubic root of 63672840 is about 399.3172519675.

The spelling of 63672840 in words is "sixty-three million, six hundred seventy-two thousand, eight hundred forty".