2042345646 has 48 divisors (see below), whose sum is σ = 4838324400. Its totient is φ = 617487360.

The previous prime is 2042345639. The next prime is 2042345671. The reversal of 2042345646 is 6465432402.

2042345646 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 3 + 4 + 5 + 646 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2042345646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77416 + ... + 100388.

It is an arithmetic number, because the mean of its divisors is an integer number (100798425).

Almost surely, 2^2042345646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2042345646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2419162200).

2042345646 is an abundant number, since it is smaller than the sum of its proper divisors (2795978754).

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

2042345646 is a wasteful number, since it uses less digits than its factorization.

2042345646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23441 (or 23438 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The square root of 2042345646 is about 45192.3184401951. The cubic root of 2042345646 is about 1268.7510498313.

The spelling of 2042345646 in words is "two billion, forty-two million, three hundred forty-five thousand, six hundred forty-six".