73404072 has 48 divisors (see below), whose sum is σ = 227204640. Its totient is φ = 20972448.

The previous prime is 73404047. The next prime is 73404077. The reversal of 73404072 is 27040437.

It is not an unprimeable number, because it can be changed into a prime (73404077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72318 + ... + 73325.

It is an arithmetic number, because the mean of its divisors is an integer number (4733430).

Almost surely, 2^73404072 is an apocalyptic number.

73404072 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

73404072 is an abundant number, since it is smaller than the sum of its proper divisors (153800568).

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

73404072 is a wasteful number, since it uses less digits than its factorization.

73404072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145662 (or 145655 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 73404072 is about 8567.6176385271. The cubic root of 73404072 is about 418.7036217441.

Subtracting from 73404072 its reverse (27040437), we obtain a triangular number (46363635 = T₉₆₂₉).

The spelling of 73404072 in words is "seventy-three million, four hundred four thousand, seventy-two".