274638401 has 2 divisors, whose sum is σ = 274638402. Its totient is φ = 274638400.

The previous prime is 274638379. The next prime is 274638433. The reversal of 274638401 is 104836472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258437776 + 16200625 = 16076^2 + 4025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274638401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (274632401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137319200 + 137319201.

It is an arithmetic number, because the mean of its divisors is an integer number (137319201).

Almost surely, 2^274638401 is an apocalyptic number.

It is an amenable number.

274638401 is a deficient number, since it is larger than the sum of its proper divisors (1).

274638401 is an equidigital number, since it uses as much as digits as its factorization.

274638401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 274638401 is about 16572.2177453713. The cubic root of 274638401 is about 650.0105726091.

The spelling of 274638401 in words is "two hundred seventy-four million, six hundred thirty-eight thousand, four hundred one".