2142020434 has 8 divisors (see below), whose sum is σ = 3402032508. Its totient is φ = 1008009600.

The previous prime is 2142020411. The next prime is 2142020437. The reversal of 2142020434 is 4340202412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2141375625 + 644809 = 46275^2 + 803^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2142020437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31500267 + ... + 31500334.

Almost surely, 2^2142020434 is an apocalyptic number.

2142020434 is a deficient number, since it is larger than the sum of its proper divisors (1260012074).

2142020434 is a wasteful number, since it uses less digits than its factorization.

2142020434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63000620.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2142020434 is about 46281.9666176795. The cubic root of 2142020434 is about 1289.0641679275.

Adding to 2142020434 its reverse (4340202412), we get a palindrome (6482222846).

The spelling of 2142020434 in words is "two billion, one hundred forty-two million, twenty thousand, four hundred thirty-four".