16349420 has 24 divisors (see below), whose sum is σ = 35066304. Its totient is φ = 6400256.

The previous prime is 16349419. The next prime is 16349441. The reversal of 16349420 is 2494361.

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, 7757 + ... + 9636.

It is an arithmetic number, because the mean of its divisors is an integer number (1461096).

Almost surely, 2^16349420 is an apocalyptic number.

16349420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16349420 is an abundant number, since it is smaller than the sum of its proper divisors (18716884).

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

16349420 is a wasteful number, since it uses less digits than its factorization.

16349420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17449 (or 17447 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 16349420 is about 4043.4416033869. The cubic root of 16349420 is about 253.8053564913.

The spelling of 16349420 in words is "sixteen million, three hundred forty-nine thousand, four hundred twenty".