127822428 has 24 divisors (see below), whose sum is σ = 331391760. Its totient is φ = 42607440.

The previous prime is 127822427. The next prime is 127822441. The reversal of 127822428 is 824228721.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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 = 127822392 and 127822401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127822421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591663 + ... + 591878.

It is an arithmetic number, because the mean of its divisors is an integer number (13807990).

Almost surely, 2^127822428 is an apocalyptic number.

127822428 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

127822428 is an abundant number, since it is smaller than the sum of its proper divisors (203569332).

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

127822428 is a wasteful number, since it uses less digits than its factorization.

127822428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183554 (or 1183546 counting only the distinct ones).

The product of its digits is 28672, while the sum is 36.

The square root of 127822428 is about 11305.8581275372. The cubic root of 127822428 is about 503.7352634603.

The spelling of 127822428 in words is "one hundred twenty-seven million, eight hundred twenty-two thousand, four hundred twenty-eight".