127256730 has 64 divisors (see below), whose sum is σ = 330324480. Its totient is φ = 31253504.

The previous prime is 127256711. The next prime is 127256761. The reversal of 127256730 is 37652721.

It is a junction number, because it is equal to n+sod(n) for n = 127256691 and 127256700.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21316 + ... + 26624.

It is an arithmetic number, because the mean of its divisors is an integer number (5161320).

Almost surely, 2^127256730 is an apocalyptic number.

127256730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 127256730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165162240).

127256730 is an abundant number, since it is smaller than the sum of its proper divisors (203067750).

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

127256730 is a wasteful number, since it uses less digits than its factorization.

127256730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5383.

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 127256730 is about 11280.8124707399. The cubic root of 127256730 is about 502.9910449549.

The spelling of 127256730 in words is "one hundred twenty-seven million, two hundred fifty-six thousand, seven hundred thirty".