127578464 has 48 divisors (see below), whose sum is σ = 284744880. Its totient is φ = 55779840.

The previous prime is 127578461. The next prime is 127578497. The reversal of 127578464 is 464875721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127578461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167 + ... + 15974.

It is an arithmetic number, because the mean of its divisors is an integer number (5932185).

Almost surely, 2^127578464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127578464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142372440).

127578464 is an abundant number, since it is smaller than the sum of its proper divisors (157166416).

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

127578464 is a wasteful number, since it uses less digits than its factorization.

127578464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16183 (or 16175 counting only the distinct ones).

The product of its digits is 376320, while the sum is 44.

The square root of 127578464 is about 11295.0637005729. The cubic root of 127578464 is about 503.4145802017.

The spelling of 127578464 in words is "one hundred twenty-seven million, five hundred seventy-eight thousand, four hundred sixty-four".