1616243349 has 16 divisors (see below), whose sum is σ = 2486761472. Its totient is φ = 914599728.

The previous prime is 1616243347. The next prime is 1616243351. The reversal of 1616243349 is 9433426161.

It is an interprime number because it is at equal distance from previous prime (1616243347) and next prime (1616243351).

It is not a de Polignac number, because 1616243349 - 2¹ = 1616243347 is a prime.

It is a super-2 number, since 2×1616243349² = 5224485126373471602, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1616243347) 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, 371449 + ... + 375774.

It is an arithmetic number, because the mean of its divisors is an integer number (155422592).

Almost surely, 2^1616243349 is an apocalyptic number.

It is an amenable number.

1616243349 is a deficient number, since it is larger than the sum of its proper divisors (870518123).

1616243349 is a wasteful number, since it uses less digits than its factorization.

1616243349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747336.

The product of its digits is 93312, while the sum is 39.

The square root of 1616243349 is about 40202.5291368590. The cubic root of 1616243349 is about 1173.5517630873.

The spelling of 1616243349 in words is "one billion, six hundred sixteen million, two hundred forty-three thousand, three hundred forty-nine".