347989442 has 4 divisors (see below), whose sum is σ = 521984166. Its totient is φ = 173994720.

The previous prime is 347989441. The next prime is 347989451. The reversal of 347989442 is 244989743.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244989743 = 19 ⋅12894197.

It can be written as a sum of positive squares in only one way, i.e., 269649241 + 78340201 = 16421^2 + 8851^2 .

It is not an unprimeable number, because it can be changed into a prime (347989441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86997359 + ... + 86997362.

Almost surely, 2^347989442 is an apocalyptic number.

347989442 is a deficient number, since it is larger than the sum of its proper divisors (173994724).

347989442 is a wasteful number, since it uses less digits than its factorization.

347989442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173994723.

The product of its digits is 1741824, while the sum is 50.

The square root of 347989442 is about 18654.4751199277. The cubic root of 347989442 is about 703.3778521768.

The spelling of 347989442 in words is "three hundred forty-seven million, nine hundred eighty-nine thousand, four hundred forty-two".