274643740 has 24 divisors (see below), whose sum is σ = 659145312. Its totient is φ = 94163520.

The previous prime is 274643731. The next prime is 274643741. The reversal of 274643740 is 47346472.

It is a self number, because there is not a number n which added to its sum of digits gives 274643740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274643741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 980731 + ... + 981010.

It is an arithmetic number, because the mean of its divisors is an integer number (27464388).

Almost surely, 2^274643740 is an apocalyptic number.

274643740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

274643740 is an abundant number, since it is smaller than the sum of its proper divisors (384501572).

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

274643740 is a wasteful number, since it uses less digits than its factorization.

274643740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961757 (or 1961755 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 37.

The square root of 274643740 is about 16572.3788274345. The cubic root of 274643740 is about 650.0147846736.

The spelling of 274643740 in words is "two hundred seventy-four million, six hundred forty-three thousand, seven hundred forty".