3402378139 has 4 divisors (see below), whose sum is σ = 3481503256. Its totient is φ = 3323253024.

The previous prime is 3402378101. The next prime is 3402378143. The reversal of 3402378139 is 9318732043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9318732043 = 191 ⋅48789173.

It is a cyclic number.

It is not a de Polignac number, because 3402378139 - 2¹¹ = 3402376091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3402372139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39562494 + ... + 39562579.

It is an arithmetic number, because the mean of its divisors is an integer number (870375814).

Almost surely, 2^3402378139 is an apocalyptic number.

3402378139 is a deficient number, since it is larger than the sum of its proper divisors (79125117).

3402378139 is an equidigital number, since it uses as much as digits as its factorization.

3402378139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79125116.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 3402378139 is about 58329.9077575132. The cubic root of 3402378139 is about 1504.0451022188.

The spelling of 3402378139 in words is "three billion, four hundred two million, three hundred seventy-eight thousand, one hundred thirty-nine".