73016520 has 32 divisors (see below), whose sum is σ = 219049920. Its totient is φ = 19471040.

The previous prime is 73016509. The next prime is 73016543. The reversal of 73016520 is 2561037.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304116 + ... + 304355.

It is an arithmetic number, because the mean of its divisors is an integer number (6845310).

Almost surely, 2^73016520 is an apocalyptic number.

It is an amenable number.

73016520 is an abundant number, since it is smaller than the sum of its proper divisors (146033400).

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

73016520 is a wasteful number, since it uses less digits than its factorization.

73016520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608485 (or 608481 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 24.

The square root of 73016520 is about 8544.9704505048. The cubic root of 73016520 is about 417.9654435998.

Adding to 73016520 its reverse (2561037), we get a palindrome (75577557).

It can be divided in two parts, 73016 and 520, that added together give a triangular number (73536 = T₃₈₃).

The spelling of 73016520 in words is "seventy-three million, sixteen thousand, five hundred twenty".