127388740 has 24 divisors (see below), whose sum is σ = 271904472. Its totient is φ = 50119680.

The previous prime is 127388719. The next prime is 127388761. The reversal of 127388740 is 47883721.

It is an interprime number because it is at equal distance from previous prime (127388719) and next prime (127388761).

It can be written as a sum of positive squares in 4 ways, for example, as 3378244 + 124010496 = 1838^2 + 11136^2 .

It is a junction number, because it is equal to n+sod(n) for n = 127388693 and 127388702.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50989 + ... + 53428.

It is an arithmetic number, because the mean of its divisors is an integer number (11329353).

Almost surely, 2^127388740 is an apocalyptic number.

127388740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127388740 is an abundant number, since it is smaller than the sum of its proper divisors (144515732).

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

127388740 is a wasteful number, since it uses less digits than its factorization.

127388740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104487 (or 104485 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 127388740 is about 11286.6620397707. The cubic root of 127388740 is about 503.1649110733.

The spelling of 127388740 in words is "one hundred twenty-seven million, three hundred eighty-eight thousand, seven hundred forty".