173040012 has 18 divisors (see below), whose sum is σ = 437406788. Its totient is φ = 57679992.

The previous prime is 173040001. The next prime is 173040053. The reversal of 173040012 is 210040371.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2403298 + ... + 2403369.

Almost surely, 2^173040012 is an apocalyptic number.

173040012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

173040012 is an abundant number, since it is smaller than the sum of its proper divisors (264366776).

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

173040012 is a wasteful number, since it uses less digits than its factorization.

173040012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4806677 (or 4806672 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 173040012 is about 13154.4673780431. The cubic root of 173040012 is about 557.2484196708.

Adding to 173040012 its reverse (210040371), we get a palindrome (383080383).

The spelling of 173040012 in words is "one hundred seventy-three million, forty thousand, twelve".