2021432342 has 16 divisors (see below), whose sum is σ = 3081079392. Its totient is φ = 994472640.

The previous prime is 2021432339. The next prime is 2021432377. The reversal of 2021432342 is 2432341202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45023 + ... + 77909.

It is an arithmetic number, because the mean of its divisors is an integer number (192567462).

Almost surely, 2^2021432342 is an apocalyptic number.

2021432342 is a deficient number, since it is larger than the sum of its proper divisors (1059647050).

2021432342 is a wasteful number, since it uses less digits than its factorization.

2021432342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33383.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2021432342 is about 44960.3418803728. The cubic root of 2021432342 is about 1264.4055786524.

Adding to 2021432342 its reverse (2432341202), we get a palindrome (4453773544).

The spelling of 2021432342 in words is "two billion, twenty-one million, four hundred thirty-two thousand, three hundred forty-two".