342689745 has 32 divisors (see below), whose sum is σ = 567358848. Its totient is φ = 176491008.

The previous prime is 342689729. The next prime is 342689749. The reversal of 342689745 is 547986243.

It is not a de Polignac number, because 342689745 - 2⁴ = 342689729 is a prime.

It is a super-2 number, since 2×342689745² = 234872522656330050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 342689694 and 342689703.

It is not an unprimeable number, because it can be changed into a prime (342689749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73782 + ... + 78288.

It is an arithmetic number, because the mean of its divisors is an integer number (17729964).

Almost surely, 2^342689745 is an apocalyptic number.

It is an amenable number.

342689745 is a deficient number, since it is larger than the sum of its proper divisors (224669103).

342689745 is a wasteful number, since it uses less digits than its factorization.

342689745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4689.

The product of its digits is 1451520, while the sum is 48.

The square root of 342689745 is about 18511.8811847959. The cubic root of 342689745 is about 699.7888785086.

The spelling of 342689745 in words is "three hundred forty-two million, six hundred eighty-nine thousand, seven hundred forty-five".