127438040 has 32 divisors (see below), whose sum is σ = 287092080. Its totient is φ = 50911872.

The previous prime is 127438039. The next prime is 127438049. The reversal of 127438040 is 40834721.

It is a junction number, because it is equal to n+sod(n) for n = 127437994 and 127438012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127438049) 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, 43502 + ... + 46338.

Almost surely, 2^127438040 is an apocalyptic number.

127438040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127438040 is an abundant number, since it is smaller than the sum of its proper divisors (159654040).

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

127438040 is a wasteful number, since it uses less digits than its factorization.

127438040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3971 (or 3967 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 127438040 is about 11288.8458223151. The cubic root of 127438040 is about 503.2298117095.

The spelling of 127438040 in words is "one hundred twenty-seven million, four hundred thirty-eight thousand, forty".