127423220 has 24 divisors (see below), whose sum is σ = 279224064. Its totient is φ = 48753056.

The previous prime is 127423217. The next prime is 127423223. The reversal of 127423220 is 22324721.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (127423217) and next prime (127423223).

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127423223) 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, 138044 + ... + 138963.

It is an arithmetic number, because the mean of its divisors is an integer number (11634336).

Almost surely, 2^127423220 is an apocalyptic number.

127423220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127423220 is an abundant number, since it is smaller than the sum of its proper divisors (151800844).

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

127423220 is a wasteful number, since it uses less digits than its factorization.

127423220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277039 (or 277037 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 127423220 is about 11288.1894030885. The cubic root of 127423220 is about 503.2103037851.

Adding to 127423220 its reverse (22324721), we get a palindrome (149747941).

The spelling of 127423220 in words is "one hundred twenty-seven million, four hundred twenty-three thousand, two hundred twenty".