73063620 has 240 divisors, whose sum is σ = 278087040. Its totient is φ = 15676416.

The previous prime is 73063589. The next prime is 73063631. The reversal of 73063620 is 2636037.

73063620 is a `hidden beast` number, since 7 + 3 + 0 + 636 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 192591 + ... + 192969.

It is an arithmetic number, because the mean of its divisors is an integer number (1158696).

Almost surely, 2^73063620 is an apocalyptic number.

73063620 is a gapful number since it is divisible by the number (70) 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 73063620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139043520).

73063620 is an abundant number, since it is smaller than the sum of its proper divisors (205023420).

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

73063620 is a wasteful number, since it uses less digits than its factorization.

73063620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 73063620 is about 8547.7260133909. The cubic root of 73063620 is about 418.0552951429.

Adding to 73063620 its reverse (2636037), we get a palindrome (75699657).

The spelling of 73063620 in words is "seventy-three million, sixty-three thousand, six hundred twenty".