127423840 has 96 divisors (see below), whose sum is σ = 323326080. Its totient is φ = 47284224.

The previous prime is 127423787. The next prime is 127423847. The reversal of 127423840 is 48324721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127423847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214584 + ... + 215176.

It is an arithmetic number, because the mean of its divisors is an integer number (3367980).

Almost surely, 2^127423840 is an apocalyptic number.

127423840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127423840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161663040).

127423840 is an abundant number, since it is smaller than the sum of its proper divisors (195902240).

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

127423840 is a wasteful number, since it uses less digits than its factorization.

127423840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 127423840 is about 11288.2168653867. The cubic root of 127423840 is about 503.2111199365.

The spelling of 127423840 in words is "one hundred twenty-seven million, four hundred twenty-three thousand, eight hundred forty".