73099620 has 72 divisors (see below), whose sum is σ = 241899840. Its totient is φ = 17720640.

The previous prime is 73099619. The next prime is 73099639. The reversal of 73099620 is 2699037.

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

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 23 ways as a sum of consecutive naturals, for example, 16480 + ... + 20439.

It is an arithmetic number, because the mean of its divisors is an integer number (3359720).

Almost surely, 2^73099620 is an apocalyptic number.

It is an amenable number.

73099620 is an abundant number, since it is smaller than the sum of its proper divisors (168800220).

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

73099620 is a wasteful number, since it uses less digits than its factorization.

73099620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36945 (or 36940 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 73099620 is about 8549.8315772885. The cubic root of 73099620 is about 418.1239454484.

The spelling of 73099620 in words is "seventy-three million, ninety-nine thousand, six hundred twenty".