73840128 has 40 divisors (see below), whose sum is σ = 196718808. Its totient is φ = 24612864.

The previous prime is 73840127. The next prime is 73840133. The reversal of 73840128 is 82104837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73840127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22501 + ... + 25572.

Almost surely, 2^73840128 is an apocalyptic number.

It is an amenable number.

73840128 is an abundant number, since it is smaller than the sum of its proper divisors (122878680).

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

73840128 is an equidigital number, since it uses as much as digits as its factorization.

73840128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48094 (or 48078 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 73840128 is about 8593.0278714781. The cubic root of 73840128 is about 419.5310866490.

The spelling of 73840128 in words is "seventy-three million, eight hundred forty thousand, one hundred twenty-eight".