274495638 has 32 divisors (see below), whose sum is σ = 567751680. Its totient is φ = 88382880.

The previous prime is 274495631. The next prime is 274495667. The reversal of 274495638 is 836594472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274495631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136456 + ... + 138452.

It is an arithmetic number, because the mean of its divisors is an integer number (17742240).

Almost surely, 2^274495638 is an apocalyptic number.

274495638 is an abundant number, since it is smaller than the sum of its proper divisors (293256042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

274495638 is a wasteful number, since it uses less digits than its factorization.

274495638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772.

The product of its digits is 1451520, while the sum is 48.

The square root of 274495638 is about 16567.9098862832. The cubic root of 274495638 is about 649.8979232211.

The spelling of 274495638 in words is "two hundred seventy-four million, four hundred ninety-five thousand, six hundred thirty-eight".