348456890 has 16 divisors (see below), whose sum is σ = 629005608. Its totient is φ = 138986496.

The previous prime is 348456887. The next prime is 348456937. The reversal of 348456890 is 98654843.

It is a Cunningham number, because it is equal to 18667²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 329386201 + 19070689 = 18149^2 + 4367^2 .

It is a Curzon 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, 45827 + ... + 52886.

Almost surely, 2^348456890 is an apocalyptic number.

348456890 is a deficient number, since it is larger than the sum of its proper divisors (280548718).

348456890 is a wasteful number, since it uses less digits than its factorization.

348456890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99073.

The product of its (nonzero) digits is 829440, while the sum is 47.

The square root of 348456890 is about 18667.0000267852. Note that the first 4 decimals coincide. The cubic root of 348456890 is about 703.6926562292.

The spelling of 348456890 in words is "three hundred forty-eight million, four hundred fifty-six thousand, eight hundred ninety".