2628408139 has 8 divisors (see below), whose sum is σ = 3009017088. Its totient is φ = 2249079720.

The previous prime is 2628408071. The next prime is 2628408163. The reversal of 2628408139 is 9318048262.

2628408139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2628408139 - 2²³ = 2620019531 is a prime.

It is a super-2 number, since 2×2628408139² = 13817058690322886642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2628408095 and 2628408104.

It is not an unprimeable number, because it can be changed into a prime (2628408179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 315727 + ... + 323944.

It is an arithmetic number, because the mean of its divisors is an integer number (376127136).

Almost surely, 2^2628408139 is an apocalyptic number.

2628408139 is a deficient number, since it is larger than the sum of its proper divisors (380608949).

2628408139 is an equidigital number, since it uses as much as digits as its factorization.

2628408139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640265.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 2628408139 is about 51268.0030720917. The cubic root of 2628408139 is about 1380.0588329955.

The spelling of 2628408139 in words is "two billion, six hundred twenty-eight million, four hundred eight thousand, one hundred thirty-nine".