73703804220 has 72 divisors (see below), whose sum is σ = 224527854096. Its totient is φ = 19569983232.

The previous prime is 73703804197. The next prime is 73703804227. The reversal of 73703804220 is 2240830737.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73703804227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 836742 + ... + 920621.

It is an arithmetic number, because the mean of its divisors is an integer number (3118442418).

Almost surely, 2^73703804220 is an apocalyptic number.

It is an amenable number.

73703804220 is an abundant number, since it is smaller than the sum of its proper divisors (150824049876).

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

73703804220 is a wasteful number, since it uses less digits than its factorization.

73703804220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757611 (or 1757606 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The spelling of 73703804220 in words is "seventy-three billion, seven hundred three million, eight hundred four thousand, two hundred twenty".