349437493 has 4 divisors (see below), whose sum is σ = 367828960. Its totient is φ = 331046028.

The previous prime is 349437467. The next prime is 349437511. The reversal of 349437493 is 394734943.

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, and also an emirpimes, since its reverse is a distinct semiprime: 394734943 = 379 ⋅1041517.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349437493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349437293) 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, 9195705 + ... + 9195742.

It is an arithmetic number, because the mean of its divisors is an integer number (91957240).

Almost surely, 2^349437493 is an apocalyptic number.

It is an amenable number.

349437493 is a deficient number, since it is larger than the sum of its proper divisors (18391467).

349437493 is a wasteful number, since it uses less digits than its factorization.

349437493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18391466.

The product of its digits is 979776, while the sum is 46.

The square root of 349437493 is about 18693.2472566967. The cubic root of 349437493 is about 704.3521322115.

It can be divided in two parts, 34943 and 7493, that added together give a square (42436 = 206²).

The spelling of 349437493 in words is "three hundred forty-nine million, four hundred thirty-seven thousand, four hundred ninety-three".