127740942 has 96 divisors (see below), whose sum is σ = 344736000. Its totient is φ = 34893936.

The previous prime is 127740929. The next prime is 127740947. The reversal of 127740942 is 249047721.

It is a super-3 number, since 3×127740942³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 127740897 and 127740906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127740947) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 59809 + ... + 61907.

It is an arithmetic number, because the mean of its divisors is an integer number (3591000).

Almost surely, 2^127740942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127740942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172368000).

127740942 is an abundant number, since it is smaller than the sum of its proper divisors (216995058).

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

127740942 is a wasteful number, since it uses less digits than its factorization.

127740942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147 (or 2134 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 127740942 is about 11302.2538460256. The cubic root of 127740942 is about 503.6281980105.

The spelling of 127740942 in words is "one hundred twenty-seven million, seven hundred forty thousand, nine hundred forty-two".