73604420 has 24 divisors (see below), whose sum is σ = 154926744. Its totient is φ = 29373696.

The previous prime is 73604417. The next prime is 73604437. The reversal of 73604420 is 2440637.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28472896 + 45131524 = 5336^2 + 6718^2 .

It is a super-2 number, since 2×73604420² = 10835221287072800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 73604420.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5114 + ... + 13166.

It is an arithmetic number, because the mean of its divisors is an integer number (6455281).

Almost surely, 2^73604420 is an apocalyptic number.

It is an amenable number.

73604420 is an abundant number, since it is smaller than the sum of its proper divisors (81322324).

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

73604420 is a wasteful number, since it uses less digits than its factorization.

73604420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8519 (or 8517 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 73604420 is about 8579.3018363967. The cubic root of 73604420 is about 419.0842102091.

The spelling of 73604420 in words is "seventy-three million, six hundred four thousand, four hundred twenty".