274005421 has 4 divisors (see below), whose sum is σ = 276163072. Its totient is φ = 271847772.

The previous prime is 274005397. The next prime is 274005467. The reversal of 274005421 is 124500472.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 274005421 - 2⁷ = 274005293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274005481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1078635 + ... + 1078888.

It is an arithmetic number, because the mean of its divisors is an integer number (69040768).

Almost surely, 2^274005421 is an apocalyptic number.

It is an amenable number.

274005421 is a deficient number, since it is larger than the sum of its proper divisors (2157651).

274005421 is a wasteful number, since it uses less digits than its factorization.

274005421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157650.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 274005421 is about 16553.1091037303. The cubic root of 274005421 is about 649.5108122074.

Adding to 274005421 its reverse (124500472), we get a palindrome (398505893).

The spelling of 274005421 in words is "two hundred seventy-four million, five thousand, four hundred twenty-one".