1946473518 has 48 divisors (see below), whose sum is σ = 4378606848. Its totient is φ = 576114000.

The previous prime is 1946473513. The next prime is 1946473519. The reversal of 1946473518 is 8153746491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1946473513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43 + ... + 62393.

It is an arithmetic number, because the mean of its divisors is an integer number (91220976).

Almost surely, 2^1946473518 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1946473518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2189303424).

1946473518 is an abundant number, since it is smaller than the sum of its proper divisors (2432133330).

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

1946473518 is a wasteful number, since it uses less digits than its factorization.

1946473518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62421 (or 62410 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 1946473518 is about 44118.8567168280. The cubic root of 1946473518 is about 1248.5794033090.

The spelling of 1946473518 in words is "one billion, nine hundred forty-six million, four hundred seventy-three thousand, five hundred eighteen".