1929441654 has 32 divisors (see below), whose sum is σ = 4900170240. Its totient is φ = 551268936.

The previous prime is 1929441653. The next prime is 1929441721. The reversal of 1929441654 is 4561449291.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1929441653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2551794 + ... + 2552549.

It is an arithmetic number, because the mean of its divisors is an integer number (153130320).

Almost surely, 2^1929441654 is an apocalyptic number.

1929441654 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1929441654 is an abundant number, since it is smaller than the sum of its proper divisors (2970728586).

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

1929441654 is a wasteful number, since it uses less digits than its factorization.

1929441654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5104361 (or 5104355 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 1929441654 is about 43925.4101176073. The cubic root of 1929441654 is about 1244.9269923802.

The spelling of 1929441654 in words is "one billion, nine hundred twenty-nine million, four hundred forty-one thousand, six hundred fifty-four".