73400512 has 28 divisors (see below), whose sum is σ = 145938240. Its totient is φ = 36628736.

The previous prime is 73400497. The next prime is 73400513. The reversal of 73400512 is 21500437.

It is not an unprimeable number, because it can be changed into a prime (73400513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50289 + ... + 51727.

It is an arithmetic number, because the mean of its divisors is an integer number (5212080).

Almost surely, 2^73400512 is an apocalyptic number.

It is an amenable number.

73400512 is a deficient number, since it is larger than the sum of its proper divisors (72537728).

73400512 is a wasteful number, since it uses less digits than its factorization.

73400512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248 (or 2238 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 73400512 is about 8567.4098769698. The cubic root of 73400512 is about 418.6968527782.

Adding to 73400512 its reverse (21500437), we get a palindrome (94900949).

The spelling of 73400512 in words is "seventy-three million, four hundred thousand, five hundred twelve".