73400043 has 16 divisors (see below), whose sum is σ = 99021312. Its totient is φ = 48360000.

The previous prime is 73400039. The next prime is 73400057. The reversal of 73400043 is 34000437.

It is not a de Polignac number, because 73400043 - 2² = 73400039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 73399992 and 73400019.

It is not an unprimeable number, because it can be changed into a prime (73400083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140623 + ... + 141143.

It is an arithmetic number, because the mean of its divisors is an integer number (6188832).

Almost surely, 2^73400043 is an apocalyptic number.

73400043 is a deficient number, since it is larger than the sum of its proper divisors (25621269).

73400043 is a wasteful number, since it uses less digits than its factorization.

73400043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986.

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 73400043 is about 8567.3825057599. The cubic root of 73400043 is about 418.6959610076.

The spelling of 73400043 in words is "seventy-three million, four hundred thousand, forty-three".