518942073 has 16 divisors (see below), whose sum is σ = 754584320. Its totient is φ = 315304704.

The previous prime is 518942069. The next prime is 518942093. The reversal of 518942073 is 370249815.

It is not a de Polignac number, because 518942073 - 2² = 518942069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (518942093) 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, 81136 + ... + 87297.

It is an arithmetic number, because the mean of its divisors is an integer number (47161520).

Almost surely, 2^518942073 is an apocalyptic number.

It is an amenable number.

518942073 is a deficient number, since it is larger than the sum of its proper divisors (235642247).

518942073 is a wasteful number, since it uses less digits than its factorization.

518942073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168528.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 518942073 is about 22780.3001077686. The cubic root of 518942073 is about 803.5994437381.

The spelling of 518942073 in words is "five hundred eighteen million, nine hundred forty-two thousand, seventy-three".