342437845 has 4 divisors (see below), whose sum is σ = 410925420. Its totient is φ = 273950272.

The previous prime is 342437803. The next prime is 342437891. The reversal of 342437845 is 548734243.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 548734243 = 3907 ⋅140449.

It can be written as a sum of positive squares in 2 ways, for example, as 237129201 + 105308644 = 15399^2 + 10262^2 .

It is a cyclic number.

It is not a de Polignac number, because 342437845 - 2¹³ = 342429653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 342437798 and 342437807.

It is a congruent number.

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, 34243780 + ... + 34243789.

It is an arithmetic number, because the mean of its divisors is an integer number (102731355).

Almost surely, 2^342437845 is an apocalyptic number.

It is an amenable number.

342437845 is a deficient number, since it is larger than the sum of its proper divisors (68487575).

342437845 is an equidigital number, since it uses as much as digits as its factorization.

342437845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68487574.

The product of its digits is 322560, while the sum is 40.

The square root of 342437845 is about 18505.0761954659. The cubic root of 342437845 is about 699.6173725225.

The spelling of 342437845 in words is "three hundred forty-two million, four hundred thirty-seven thousand, eight hundred forty-five".