73420845 has 32 divisors (see below), whose sum is σ = 125385600. Its totient is φ = 36578304.

The previous prime is 73420843. The next prime is 73420861. The reversal of 73420845 is 54802437.

It is not a de Polignac number, because 73420845 - 2¹ = 73420843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73420843) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19041 + ... + 22569.

It is an arithmetic number, because the mean of its divisors is an integer number (3918300).

Almost surely, 2^73420845 is an apocalyptic number.

It is an amenable number.

73420845 is a deficient number, since it is larger than the sum of its proper divisors (51964755).

73420845 is a wasteful number, since it uses less digits than its factorization.

73420845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 73420845 is about 8568.5964428254. The cubic root of 73420845 is about 418.7355108969.

The spelling of 73420845 in words is "seventy-three million, four hundred twenty thousand, eight hundred forty-five".