1616349 has 16 divisors (see below), whose sum is σ = 2593280. Its totient is φ = 874800.

The previous prime is 1616347. The next prime is 1616359. The reversal of 1616349 is 9436161.

It is not a de Polignac number, because 1616349 - 2¹ = 1616347 is a prime.

It is a super-2 number, since 2×1616349² = 5225168179602, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1627 + ... + 2424.

It is an arithmetic number, because the mean of its divisors is an integer number (162080).

2^1616349 is an apocalyptic number.

1616349 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1616349 is a deficient number, since it is larger than the sum of its proper divisors (976931).

1616349 is a wasteful number, since it uses less digits than its factorization.

1616349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4080.

The product of its digits is 3888, while the sum is 30.

The square root of 1616349 is about 1271.3571488767. The cubic root of 1616349 is about 117.3577333539.

The spelling of 1616349 in words is "one million, six hundred sixteen thousand, three hundred forty-nine".