349420 has 12 divisors (see below), whose sum is σ = 733824. Its totient is φ = 139760.

The previous prime is 349411. The next prime is 349423. The reversal of 349420 is 24943.

349420 = T₈ + T₉ + ... + T₁₂₇.

It is a d-powerful number, because it can be written as 3⁹ + 4⁸ + 4⁹ + 9 + 2¹¹ + 0 .

It is a junction number, because it is equal to n+sod(n) for n = 349391 and 349400.

It is not an unprimeable number, because it can be changed into a prime (349423) 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, 8716 + ... + 8755.

It is an arithmetic number, because the mean of its divisors is an integer number (61152).

2³⁴⁹⁴²⁰ is an apocalyptic number.

It is an amenable number.

349420 is an abundant number, since it is smaller than the sum of its proper divisors (384404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

349420 is a wasteful number, since it uses less digits than its factorization.

349420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17480 (or 17478 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 349420 is about 591.1175855953. The cubic root of 349420 is about 70.4340378619.

The spelling of 349420 in words is "three hundred forty-nine thousand, four hundred twenty".