73809420 has 48 divisors (see below), whose sum is σ = 207459168. Its totient is φ = 19607040.

The previous prime is 73809409. The next prime is 73809473. The reversal of 73809420 is 2490837.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14400 + ... + 18840.

It is an arithmetic number, because the mean of its divisors is an integer number (4322066).

Almost surely, 2^73809420 is an apocalyptic number.

It is an amenable number.

73809420 is an abundant number, since it is smaller than the sum of its proper divisors (133649748).

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

73809420 is a wasteful number, since it uses less digits than its factorization.

73809420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4730 (or 4728 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 73809420 is about 8591.2408882536. The cubic root of 73809420 is about 419.4729215868.

The spelling of 73809420 in words is "seventy-three million, eight hundred nine thousand, four hundred twenty".