127878740 has 48 divisors (see below), whose sum is σ = 308387520. Its totient is φ = 44052480.

The previous prime is 127878733. The next prime is 127878757. The reversal of 127878740 is 47878721.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 127878691 and 127878700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11117 + ... + 19476.

It is an arithmetic number, because the mean of its divisors is an integer number (6424740).

Almost surely, 2^127878740 is an apocalyptic number.

127878740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127878740 is an abundant number, since it is smaller than the sum of its proper divisors (180508780).

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

127878740 is a wasteful number, since it uses less digits than its factorization.

127878740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30632 (or 30630 counting only the distinct ones).

The product of its (nonzero) digits is 175616, while the sum is 44.

The square root of 127878740 is about 11308.3482436649. The cubic root of 127878740 is about 503.8092258992.

The spelling of 127878740 in words is "one hundred twenty-seven million, eight hundred seventy-eight thousand, seven hundred forty".