127994940 has 72 divisors (see below), whose sum is σ = 389935728. Its totient is φ = 33984000.

The previous prime is 127994929. The next prime is 127994981. The reversal of 127994940 is 49499721.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 43764 + ... + 46596.

It is an arithmetic number, because the mean of its divisors is an integer number (5415774).

Almost surely, 2^127994940 is an apocalyptic number.

127994940 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 127994940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194967864).

127994940 is an abundant number, since it is smaller than the sum of its proper divisors (261940788).

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

127994940 is a wasteful number, since it uses less digits than its factorization.

127994940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099 (or 3094 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 127994940 is about 11313.4848742551. The cubic root of 127994940 is about 503.9617790366.

The spelling of 127994940 in words is "one hundred twenty-seven million, nine hundred ninety-four thousand, nine hundred forty".