2928478139 has 8 divisors (see below), whose sum is σ = 2949246960. Its totient is φ = 2907736416.

The previous prime is 2928478129. The next prime is 2928478153. The reversal of 2928478139 is 9318748292.

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 2928478139 - 2¹⁶ = 2928412603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2928478129) 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, 241997 + ... + 253809.

It is an arithmetic number, because the mean of its divisors is an integer number (368655870).

Almost surely, 2^2928478139 is an apocalyptic number.

2928478139 is a deficient number, since it is larger than the sum of its proper divisors (20768821).

2928478139 is a wasteful number, since it uses less digits than its factorization.

2928478139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13549.

The product of its digits is 1741824, while the sum is 53.

The square root of 2928478139 is about 54115.4149850114. The cubic root of 2928478139 is about 1430.6958875234.

The spelling of 2928478139 in words is "two billion, nine hundred twenty-eight million, four hundred seventy-eight thousand, one hundred thirty-nine".