3946046642 has 4 divisors (see below), whose sum is σ = 5919069966. Its totient is φ = 1973023320.

The previous prime is 3946046627. The next prime is 3946046651. The reversal of 3946046642 is 2466406493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2466406493 = 191 ⋅12913123.

It can be written as a sum of positive squares in only one way, i.e., 3061519561 + 884527081 = 55331^2 + 29741^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3946046593 and 3946046602.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986511659 + ... + 986511662.

Almost surely, 2^3946046642 is an apocalyptic number.

3946046642 is a deficient number, since it is larger than the sum of its proper divisors (1973023324).

3946046642 is a wasteful number, since it uses less digits than its factorization.

3946046642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1973023323.

The product of its (nonzero) digits is 746496, while the sum is 44.

The square root of 3946046642 is about 62817.5663489123. The cubic root of 3946046642 is about 1580.2315851858.

The spelling of 3946046642 in words is "three billion, nine hundred forty-six million, forty-six thousand, six hundred forty-two".