127621242 has 48 divisors (see below), whose sum is σ = 317466240. Its totient is φ = 36295776.

The previous prime is 127621237. The next prime is 127621259. The reversal of 127621242 is 242126721.

127621242 is a `hidden beast` number, since 12 + 7 + 621 + 24 + 2 = 666.

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, 26643 + ... + 31065.

It is an arithmetic number, because the mean of its divisors is an integer number (6613880).

Almost surely, 2^127621242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127621242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158733120).

127621242 is an abundant number, since it is smaller than the sum of its proper divisors (189844998).

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

127621242 is a wasteful number, since it uses less digits than its factorization.

127621242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4667 (or 4664 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 127621242 is about 11296.9572009457. The cubic root of 127621242 is about 503.4708401213.

Adding to 127621242 its reverse (242126721), we get a palindrome (369747963).

The spelling of 127621242 in words is "one hundred twenty-seven million, six hundred twenty-one thousand, two hundred forty-two".