127099440 has 240 divisors, whose sum is σ = 473386368. Its totient is φ = 30357504.

The previous prime is 127099439. The next prime is 127099447. The reversal of 127099440 is 44990721.

127099440 is a `hidden beast` number, since 127 + 0 + 99 + 440 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 127099395 and 127099404.

It is not an unprimeable number, because it can be changed into a prime (127099447) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 346137 + ... + 346503.

Almost surely, 2^127099440 is an apocalyptic number.

127099440 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 127099440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236693184).

127099440 is an abundant number, since it is smaller than the sum of its proper divisors (346286928).

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

127099440 is a wasteful number, since it uses less digits than its factorization.

127099440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 127099440 is about 11273.8387428595. The cubic root of 127099440 is about 502.7837263071.

The spelling of 127099440 in words is "one hundred twenty-seven million, ninety-nine thousand, four hundred forty".