405200073 has 8 divisors (see below), whose sum is σ = 541499200. Its totient is φ = 269517168.

The previous prime is 405200057. The next prime is 405200077. The reversal of 405200073 is 370002504.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 405200073 - 2⁴ = 405200057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405200077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152518 + ... + 155151.

It is an arithmetic number, because the mean of its divisors is an integer number (67687400).

Almost surely, 2^405200073 is an apocalyptic number.

It is an amenable number.

405200073 is a deficient number, since it is larger than the sum of its proper divisors (136299127).

405200073 is a wasteful number, since it uses less digits than its factorization.

405200073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308111.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 405200073 is about 20129.5820373896. The cubic root of 405200073 is about 739.9854349459.

Adding to 405200073 its reverse (370002504), we get a palindrome (775202577).

The spelling of 405200073 in words is "four hundred five million, two hundred thousand, seventy-three".