1920758168 has 16 divisors (see below), whose sum is σ = 4115910480. Its totient is φ = 823182048.

The previous prime is 1920758117. The next prime is 1920758237. The reversal of 1920758168 is 8618570291.

It is a super-4 number, since 4×1920758168⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17149571 + ... + 17149682.

It is an arithmetic number, because the mean of its divisors is an integer number (257244405).

Almost surely, 2^1920758168 is an apocalyptic number.

It is an amenable number.

1920758168 is an abundant number, since it is smaller than the sum of its proper divisors (2195152312).

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

1920758168 is a wasteful number, since it uses less digits than its factorization.

1920758168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34299266 (or 34299262 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 47.

The square root of 1920758168 is about 43826.4551156034. The cubic root of 1920758168 is about 1243.0565783702.

The spelling of 1920758168 in words is "one billion, nine hundred twenty million, seven hundred fifty-eight thousand, one hundred sixty-eight".