127699740 has 120 divisors (see below), whose sum is σ = 457867872. Its totient is φ = 29185920.

The previous prime is 127699739. The next prime is 127699751. The reversal of 127699740 is 47996721.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5710 + ... + 16970.

Almost surely, 2^127699740 is an apocalyptic number.

127699740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127699740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228933936).

127699740 is an abundant number, since it is smaller than the sum of its proper divisors (330168132).

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

127699740 is a wasteful number, since it uses less digits than its factorization.

127699740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11289 (or 11278 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 127699740 is about 11300.4309652331. The cubic root of 127699740 is about 503.5740448677.

The spelling of 127699740 in words is "one hundred twenty-seven million, six hundred ninety-nine thousand, seven hundred forty".