168374690 has 16 divisors (see below), whose sum is σ = 330626880. Its totient is φ = 61227120.

The previous prime is 168374683. The next prime is 168374699. The reversal of 168374690 is 96473861.

It is a super-2 number, since 2×168374690² = 56700072465192200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (168374699) 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, 765230 + ... + 765449.

It is an arithmetic number, because the mean of its divisors is an integer number (20664180).

Almost surely, 2^168374690 is an apocalyptic number.

168374690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168374690 is a deficient number, since it is larger than the sum of its proper divisors (162252190).

168374690 is a wasteful number, since it uses less digits than its factorization.

168374690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530697.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 168374690 is about 12975.9273271701. The cubic root of 168374690 is about 552.1947454879.

The spelling of 168374690 in words is "one hundred sixty-eight million, three hundred seventy-four thousand, six hundred ninety".