73161930 has 32 divisors (see below), whose sum is σ = 177300864. Its totient is φ = 19319616.

The previous prime is 73161911. The next prime is 73161943. The reversal of 73161930 is 3916137.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 15 ways as a sum of consecutive naturals, for example, 8749 + ... + 14928.

It is an arithmetic number, because the mean of its divisors is an integer number (5540652).

Almost surely, 2^73161930 is an apocalyptic number.

73161930 is an abundant number, since it is smaller than the sum of its proper divisors (104138934).

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

73161930 is a wasteful number, since it uses less digits than its factorization.

73161930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23790.

The product of its (nonzero) digits is 3402, while the sum is 30.

The square root of 73161930 is about 8553.4747325283. The cubic root of 73161930 is about 418.2427144376.

The spelling of 73161930 in words is "seventy-three million, one hundred sixty-one thousand, nine hundred thirty".