1946340864 has 120 divisors (see below), whose sum is σ = 6049555512. Its totient is φ = 598855680.

The previous prime is 1946340841. The next prime is 1946340871. The reversal of 1946340864 is 4680436491.

1946340864 is a `hidden beast` number, since 1 + 9 + 4 + 634 + 0 + 8 + 6 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43659 + ... + 76149.

Almost surely, 2^1946340864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1946340864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3024777756).

1946340864 is an abundant number, since it is smaller than the sum of its proper divisors (4103214648).

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

1946340864 is a wasteful number, since it uses less digits than its factorization.

1946340864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32528 (or 32509 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 1946340864 is about 44117.3533204339. The cubic root of 1946340864 is about 1248.5510387113.

The spelling of 1946340864 in words is "one billion, nine hundred forty-six million, three hundred forty thousand, eight hundred sixty-four".