2278385734 has 16 divisors (see below), whose sum is σ = 3541902336. Its totient is φ = 1098045000.

The previous prime is 2278385731. The next prime is 2278385743. The reversal of 2278385734 is 4375838722.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2278385731) 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, 57642 + ... + 88765.

It is an arithmetic number, because the mean of its divisors is an integer number (221368896).

Almost surely, 2^2278385734 is an apocalyptic number.

2278385734 is a deficient number, since it is larger than the sum of its proper divisors (1263516602).

2278385734 is a wasteful number, since it uses less digits than its factorization.

2278385734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146691.

The product of its digits is 2257920, while the sum is 49.

The square root of 2278385734 is about 47732.4390116407. The cubic root of 2278385734 is about 1315.8581788547.

The spelling of 2278385734 in words is "two billion, two hundred seventy-eight million, three hundred eighty-five thousand, seven hundred thirty-four".