2142569946 has 16 divisors (see below), whose sum is σ = 4674698208. Its totient is φ = 649263600.

The previous prime is 2142569939. The next prime is 2142569969. The reversal of 2142569946 is 6499652412.

It is a junction number, because it is equal to n+sod(n) for n = 2142569895 and 2142569904.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16231525 + ... + 16231656.

It is an arithmetic number, because the mean of its divisors is an integer number (292168638).

Almost surely, 2^2142569946 is an apocalyptic number.

2142569946 is an abundant number, since it is smaller than the sum of its proper divisors (2532128262).

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

2142569946 is a wasteful number, since it uses less digits than its factorization.

2142569946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32463197.

The product of its digits is 933120, while the sum is 48.

The square root of 2142569946 is about 46287.9028040805. The cubic root of 2142569946 is about 1289.1743902909.

The spelling of 2142569946 in words is "two billion, one hundred forty-two million, five hundred sixty-nine thousand, nine hundred forty-six".