274965021 has 24 divisors (see below), whose sum is σ = 422472960. Its totient is φ = 171732096.

The previous prime is 274964927. The next prime is 274965059. The reversal of 274965021 is 120569472.

It is not a de Polignac number, because 274965021 - 2²³ = 266576413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274965421) 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, 30090 + ... + 38148.

It is an arithmetic number, because the mean of its divisors is an integer number (17603040).

Almost surely, 2^274965021 is an apocalyptic number.

It is an amenable number.

274965021 is a deficient number, since it is larger than the sum of its proper divisors (147507939).

274965021 is a wasteful number, since it uses less digits than its factorization.

274965021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8305 (or 8302 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 274965021 is about 16582.0692617055. The cubic root of 274965021 is about 650.2681505062.

The spelling of 274965021 in words is "two hundred seventy-four million, nine hundred sixty-five thousand, twenty-one".