73906220 has 24 divisors (see below), whose sum is σ = 155634864. Its totient is φ = 29480256.

The previous prime is 73906213. The next prime is 73906229. The reversal of 73906220 is 2260937.

It is not an unprimeable number, because it can be changed into a prime (73906229) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2507 + ... + 12413.

It is an arithmetic number, because the mean of its divisors is an integer number (6484786).

Almost surely, 2^73906220 is an apocalyptic number.

It is an amenable number.

73906220 is an abundant number, since it is smaller than the sum of its proper divisors (81728644).

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

73906220 is a wasteful number, since it uses less digits than its factorization.

73906220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10289 (or 10287 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 73906220 is about 8596.8726872043. The cubic root of 73906220 is about 419.6562190611.

The spelling of 73906220 in words is "seventy-three million, nine hundred six thousand, two hundred twenty".