127388490 has 64 divisors (see below), whose sum is σ = 320544000. Its totient is φ = 32400192.

The previous prime is 127388473. The next prime is 127388501. The reversal of 127388490 is 94883721.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 364836 + ... + 365184.

It is an arithmetic number, because the mean of its divisors is an integer number (5008500).

Almost surely, 2^127388490 is an apocalyptic number.

127388490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 127388490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160272000).

127388490 is an abundant number, since it is smaller than the sum of its proper divisors (193155510).

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

127388490 is an equidigital number, since it uses as much as digits as its factorization.

127388490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 127388490 is about 11286.6509647459. The cubic root of 127388490 is about 503.1645819199.

The spelling of 127388490 in words is "one hundred twenty-seven million, three hundred eighty-eight thousand, four hundred ninety".