2928138 has 16 divisors (see below), whose sum is σ = 5999616. Its totient is φ = 952160.

The previous prime is 2928137. The next prime is 2928151. The reversal of 2928138 is 8318292.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2928099 and 2928108.

It is not an unprimeable number, because it can be changed into a prime (2928137) 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, 5706 + ... + 6197.

It is an arithmetic number, because the mean of its divisors is an integer number (374976).

2^2928138 is an apocalyptic number.

2928138 is an abundant number, since it is smaller than the sum of its proper divisors (3071478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2928138 is a wasteful number, since it uses less digits than its factorization.

2928138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11949.

The product of its digits is 6912, while the sum is 33.

The square root of 2928138 is about 1711.1802944167. The cubic root of 2928138 is about 143.0640494211.

The spelling of 2928138 in words is "two million, nine hundred twenty-eight thousand, one hundred thirty-eight".