274841638 has 16 divisors (see below), whose sum is σ = 428155200. Its totient is φ = 132218856.

The previous prime is 274841617. The next prime is 274841641. The reversal of 274841638 is 836148472.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a junction number, because it is equal to n+sod(n) for n = 274841594 and 274841603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18088 + ... + 29611.

It is an arithmetic number, because the mean of its divisors is an integer number (26759700).

Almost surely, 2^274841638 is an apocalyptic number.

274841638 is the 8862-nd centered heptagonal number.

274841638 is a deficient number, since it is larger than the sum of its proper divisors (153313562).

274841638 is a wasteful number, since it uses less digits than its factorization.

274841638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47811.

The product of its digits is 258048, while the sum is 43.

The square root of 274841638 is about 16578.3484702186. The cubic root of 274841638 is about 650.1708726311.

The spelling of 274841638 in words is "two hundred seventy-four million, eight hundred forty-one thousand, six hundred thirty-eight".