3654729146 has 16 divisors (see below), whose sum is σ = 5520156264. Its totient is φ = 1814701824.

The previous prime is 3654729119. The next prime is 3654729149. The reversal of 3654729146 is 6419274563.

It can be written as a sum of positive squares in 4 ways, for example, as 2625025225 + 1029703921 = 51235^2 + 32089^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3654729146.

It is not an unprimeable number, because it can be changed into a prime (3654729149) 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, 318566 + ... + 329838.

Almost surely, 2^3654729146 is an apocalyptic number.

3654729146 is a deficient number, since it is larger than the sum of its proper divisors (1865427118).

3654729146 is a wasteful number, since it uses less digits than its factorization.

3654729146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12385.

The product of its digits is 1088640, while the sum is 47.

The square root of 3654729146 is about 60454.3558893815. The cubic root of 3654729146 is about 1540.3464034941.

The spelling of 3654729146 in words is "three billion, six hundred fifty-four million, seven hundred twenty-nine thousand, one hundred forty-six".