342021045 has 16 divisors (see below), whose sum is σ = 579424320. Its totient is φ = 171681024.

The previous prime is 342021019. The next prime is 342021059. The reversal of 342021045 is 540120243.

It is not a de Polignac number, because 342021045 - 2⁵ = 342021013 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 670375 + ... + 670884.

It is an arithmetic number, because the mean of its divisors is an integer number (36214020).

Almost surely, 2^342021045 is an apocalyptic number.

It is an amenable number.

342021045 is a deficient number, since it is larger than the sum of its proper divisors (237403275).

342021045 is a wasteful number, since it uses less digits than its factorization.

342021045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341284.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 342021045 is about 18493.8109917886. The cubic root of 342021045 is about 699.3334096439. Note that the first 3 decimals are identical.

Adding to 342021045 its reverse (540120243), we get a palindrome (882141288).

The spelling of 342021045 in words is "three hundred forty-two million, twenty-one thousand, forty-five".