274164220 has 72 divisors (see below), whose sum is σ = 637206192. Its totient is φ = 99010560.

The previous prime is 274164203. The next prime is 274164221. The reversal of 274164220 is 22461472.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274164221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 466767 + ... + 467353.

It is an arithmetic number, because the mean of its divisors is an integer number (8850086).

Almost surely, 2^274164220 is an apocalyptic number.

274164220 is a gapful number since it is divisible by the number (20) 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 274164220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318603096).

274164220 is an abundant number, since it is smaller than the sum of its proper divisors (363041972).

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

274164220 is a wasteful number, since it uses less digits than its factorization.

274164220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 798 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 274164220 is about 16557.9050607255. The cubic root of 274164220 is about 649.6362619745.

The spelling of 274164220 in words is "two hundred seventy-four million, one hundred sixty-four thousand, two hundred twenty".