168449733 has 16 divisors (see below), whose sum is σ = 249760000. Its totient is φ = 112207680.

The previous prime is 168449713. The next prime is 168449737. The reversal of 168449733 is 337944861.

It is not a de Polignac number, because 168449733 - 2⁶ = 168449669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168449737) 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, 52413 + ... + 55533.

It is an arithmetic number, because the mean of its divisors is an integer number (15610000).

Almost surely, 2^168449733 is an apocalyptic number.

It is an amenable number.

168449733 is a deficient number, since it is larger than the sum of its proper divisors (81310267).

168449733 is a wasteful number, since it uses less digits than its factorization.

168449733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5129 (or 5123 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 168449733 is about 12978.8186288275. The cubic root of 168449733 is about 552.2767692877.

It can be divided in two parts, 1684497 and 33, that added together give a triangular number (1684530 = T₁₈₃₅).

The spelling of 168449733 in words is "one hundred sixty-eight million, four hundred forty-nine thousand, seven hundred thirty-three".