349005469 has 4 divisors (see below), whose sum is σ = 349559200. Its totient is φ = 348451740.

The previous prime is 349005421. The next prime is 349005491. The reversal of 349005469 is 964500943.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 349005469 - 2¹³ = 348997277 is a prime.

It is a super-2 number, since 2×349005469² = 243609634783819922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349005499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275919 + ... + 277180.

It is an arithmetic number, because the mean of its divisors is an integer number (87389800).

Almost surely, 2^349005469 is an apocalyptic number.

It is an amenable number.

349005469 is a deficient number, since it is larger than the sum of its proper divisors (553731).

349005469 is an equidigital number, since it uses as much as digits as its factorization.

349005469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553730.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 349005469 is about 18681.6880661251. The cubic root of 349005469 is about 704.0617392964.

The spelling of 349005469 in words is "three hundred forty-nine million, five thousand, four hundred sixty-nine".