168472445 has 8 divisors (see below), whose sum is σ = 208688640. Its totient is φ = 130430160.

The previous prime is 168472441. The next prime is 168472453. The reversal of 168472445 is 544274861.

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

It is not a de Polignac number, because 168472445 - 2² = 168472441 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168472441) 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, 543305 + ... + 543614.

It is an arithmetic number, because the mean of its divisors is an integer number (26086080).

Almost surely, 2^168472445 is an apocalyptic number.

It is an amenable number.

168472445 is a deficient number, since it is larger than the sum of its proper divisors (40216195).

168472445 is a wasteful number, since it uses less digits than its factorization.

168472445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086955.

The product of its digits is 215040, while the sum is 41.

The square root of 168472445 is about 12979.6935634090. The cubic root of 168472445 is about 552.3015892465.

The spelling of 168472445 in words is "one hundred sixty-eight million, four hundred seventy-two thousand, four hundred forty-five".