274200021 has 36 divisors (see below), whose sum is σ = 429878592. Its totient is φ = 168311424.

The previous prime is 274199999. The next prime is 274200071. The reversal of 274200021 is 120002472.

It is not a de Polignac number, because 274200021 - 2⁶ = 274199957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 274199967 and 274200003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274200071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 121126 + ... + 123368.

It is an arithmetic number, because the mean of its divisors is an integer number (11941072).

Almost surely, 2^274200021 is an apocalyptic number.

It is an amenable number.

274200021 is a deficient number, since it is larger than the sum of its proper divisors (155678571).

274200021 is a wasteful number, since it uses less digits than its factorization.

274200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2330 (or 2310 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 274200021 is about 16558.9861102665. The cubic root of 274200021 is about 649.6645377473.

Adding to 274200021 its reverse (120002472), we get a palindrome (394202493).

The spelling of 274200021 in words is "two hundred seventy-four million, two hundred thousand, twenty-one".