274505906 has 8 divisors (see below), whose sum is σ = 421801884. Its totient is φ = 133905280.

The previous prime is 274505887. The next prime is 274505911. The reversal of 274505906 is 609505472.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 249355681 + 25150225 = 15791^2 + 5015^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 274505906.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1673735 + ... + 1673898.

Almost surely, 2^274505906 is an apocalyptic number.

274505906 is a deficient number, since it is larger than the sum of its proper divisors (147295978).

274505906 is a wasteful number, since it uses less digits than its factorization.

274505906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3347676.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 274505906 is about 16568.2197595276. The cubic root of 274505906 is about 649.9060266512.

The spelling of 274505906 in words is "two hundred seventy-four million, five hundred five thousand, nine hundred six".