3449400139 has 2 divisors, whose sum is σ = 3449400140. Its totient is φ = 3449400138.

The previous prime is 3449400133. The next prime is 3449400173. The reversal of 3449400139 is 9310049443.

It is a weak prime.

It is an emirp because it is prime and its reverse (9310049443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3449400139 - 2¹¹ = 3449398091 is a prime.

It is a super-2 number, since 2×3449400139² = 23796722637866438642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3449400098 and 3449400107.

It is not a weakly prime, because it can be changed into another prime (3449400133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1724700069 + 1724700070.

It is an arithmetic number, because the mean of its divisors is an integer number (1724700070).

Almost surely, 2^3449400139 is an apocalyptic number.

3449400139 is a deficient number, since it is larger than the sum of its proper divisors (1).

3449400139 is an equidigital number, since it uses as much as digits as its factorization.

3449400139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 3449400139 is about 58731.5940444323. The cubic root of 3449400139 is about 1510.9422271634.

The spelling of 3449400139 in words is "three billion, four hundred forty-nine million, four hundred thousand, one hundred thirty-nine".