168039274 has 24 divisors (see below), whose sum is σ = 279041868. Its totient is φ = 75444480.

The previous prime is 168039233. The next prime is 168039299. The reversal of 168039274 is 472930861.

It can be written as a sum of positive squares in 6 ways, for example, as 128663649 + 39375625 = 11343^2 + 6275^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33234 + ... + 37954.

Almost surely, 2^168039274 is an apocalyptic number.

168039274 is a deficient number, since it is larger than the sum of its proper divisors (111002594).

168039274 is a wasteful number, since it uses less digits than its factorization.

168039274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4810 (or 4773 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 168039274 is about 12962.9963357242. The cubic root of 168039274 is about 551.8278295404.

The spelling of 168039274 in words is "one hundred sixty-eight million, thirty-nine thousand, two hundred seventy-four".