63246820 has 192 divisors, whose sum is σ = 180633600. Its totient is φ = 18040320.

The previous prime is 63246791. The next prime is 63246853. The reversal of 63246820 is 2864236.

It is a super-2 number, since 2×63246820² = 8000320480224800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

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, 1071951 + ... + 1072009.

It is an arithmetic number, because the mean of its divisors is an integer number (940800).

Almost surely, 2^63246820 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 63246820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90316800).

63246820 is an abundant number, since it is smaller than the sum of its proper divisors (117386780).

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

63246820 is a wasteful number, since it uses less digits than its factorization.

63246820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 63246820 is about 7952.7869328934. The cubic root of 63246820 is about 398.4246790543.

The spelling of 63246820 in words is "sixty-three million, two hundred forty-six thousand, eight hundred twenty".