127440392 has 16 divisors (see below), whose sum is σ = 239100540. Its totient is φ = 63680256.

The previous prime is 127440371. The next prime is 127440419. The reversal of 127440392 is 293044721.

It can be written as a sum of positive squares in 2 ways, for example, as 125574436 + 1865956 = 11206^2 + 1366^2 .

It is a super-2 number, since 2×127440392² = 32482107026227328, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11948 + ... + 19940.

Almost surely, 2^127440392 is an apocalyptic number.

It is an amenable number.

127440392 is a deficient number, since it is larger than the sum of its proper divisors (111660148).

127440392 is a wasteful number, since it uses less digits than its factorization.

127440392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9992 (or 9988 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 127440392 is about 11288.9499954602. The cubic root of 127440392 is about 503.2329075649.

The spelling of 127440392 in words is "one hundred twenty-seven million, four hundred forty thousand, three hundred ninety-two".