4020021233434 has 8 divisors (see below), whose sum is σ = 6074046681588. Its totient is φ = 1995339006240.

The previous prime is 4020021233411. The next prime is 4020021233467. The reversal of 4020021233434 is 4343321200204.

It can be written as a sum of positive squares in 2 ways, for example, as 3627710669025 + 392310564409 = 1904655^2 + 626347^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7335804897 + ... + 7335805444.

Almost surely, 2^{4020021233434} is an apocalyptic number.

4020021233434 is a deficient number, since it is larger than the sum of its proper divisors (2054025448154).

4020021233434 is a wasteful number, since it uses less digits than its factorization.

4020021233434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14671610480.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 4020021233434 its reverse (4343321200204), we get a palindrome (8363342433638).

The spelling of 4020021233434 in words is "four trillion, twenty billion, twenty-one million, two hundred thirty-three thousand, four hundred thirty-four".