1946861343 has 24 divisors (see below), whose sum is σ = 3292257696. Its totient is φ = 1085356800.

The previous prime is 1946861339. The next prime is 1946861417. The reversal of 1946861343 is 3431686491.

1946861343 is a `hidden beast` number, since 194 + 68 + 61 + 343 = 666.

It is not a de Polignac number, because 1946861343 - 2² = 1946861339 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1946861333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 374278 + ... + 379443.

It is an arithmetic number, because the mean of its divisors is an integer number (137177404).

Almost surely, 2^1946861343 is an apocalyptic number.

1946861343 is a deficient number, since it is larger than the sum of its proper divisors (1345396353).

1946861343 is a wasteful number, since it uses less digits than its factorization.

1946861343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753775 (or 753772 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 1946861343 is about 44123.2517274056. The cubic root of 1946861343 is about 1248.6623221784.

The spelling of 1946861343 in words is "one billion, nine hundred forty-six million, eight hundred sixty-one thousand, three hundred forty-three".