127945404 has 18 divisors (see below), whose sum is σ = 323417640. Its totient is φ = 42648456.

The previous prime is 127945397. The next prime is 127945409. The reversal of 127945404 is 404549721.

It is a happy number.

127945404 is a `hidden beast` number, since 1 + 27 + 94 + 540 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3554039 = 127945404 / (1 + 2 + 7 + 9 + 4 + 5 + 4 + 0 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127945409) 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 5 ways as a sum of consecutive naturals, for example, 1776984 + ... + 1777055.

Almost surely, 2^127945404 is an apocalyptic number.

It is an amenable number.

127945404 is an abundant number, since it is smaller than the sum of its proper divisors (195472236).

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

127945404 is a wasteful number, since it uses less digits than its factorization.

127945404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3554049 (or 3554044 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 127945404 is about 11311.2954165294. The cubic root of 127945404 is about 503.8967570081.

The spelling of 127945404 in words is "one hundred twenty-seven million, nine hundred forty-five thousand, four hundred four".