1738774340 has 12 divisors (see below), whose sum is σ = 3651426156. Its totient is φ = 695509728.

The previous prime is 1738774307. The next prime is 1738774343. The reversal of 1738774340 is 434778371.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 964599364 + 774174976 = 31058^2 + 27824^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1738774291 and 1738774300.

It is not an unprimeable number, because it can be changed into a prime (1738774343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43469339 + ... + 43469378.

It is an arithmetic number, because the mean of its divisors is an integer number (304285513).

Almost surely, 2^1738774340 is an apocalyptic number.

1738774340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1738774340 is an abundant number, since it is smaller than the sum of its proper divisors (1912651816).

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

1738774340 is a wasteful number, since it uses less digits than its factorization.

1738774340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86938726 (or 86938724 counting only the distinct ones).

The product of its (nonzero) digits is 395136, while the sum is 44.

The square root of 1738774340 is about 41698.6131663872. The cubic root of 1738774340 is about 1202.4888944533.

The spelling of 1738774340 in words is "one billion, seven hundred thirty-eight million, seven hundred seventy-four thousand, three hundred forty".