2903838 has 64 divisors (see below), whose sum is σ = 7257600. Its totient is φ = 771456.

The previous prime is 2903837. The next prime is 2903893. The reversal of 2903838 is 8383092.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2903799 and 2903808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2903837) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34945 + ... + 35027.

It is an arithmetic number, because the mean of its divisors is an integer number (113400).

2^2903838 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2903838, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3628800).

2903838 is an abundant number, since it is smaller than the sum of its proper divisors (4353762).

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

2903838 is a wasteful number, since it uses less digits than its factorization.

2903838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 2903838 is about 1704.0651396000. The cubic root of 2903838 is about 142.6671967935.

It can be divided in two parts, 2903 and 838, that added together give a triangular number (3741 = T₈₆).

The spelling of 2903838 in words is "two million, nine hundred three thousand, eight hundred thirty-eight".