2758938 has 64 divisors (see below), whose sum is σ = 7053312. Its totient is φ = 699840.

The previous prime is 2758937. The next prime is 2758949. The reversal of 2758938 is 8398572.

It is a super-2 number, since 2×2758938² = 15223477775688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 2758938.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2758937) 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, 16845 + ... + 17007.

It is an arithmetic number, because the mean of its divisors is an integer number (110208).

2^2758938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2758938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3526656).

2758938 is an abundant number, since it is smaller than the sum of its proper divisors (4294374).

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

2758938 is a wasteful number, since it uses less digits than its factorization.

2758938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219.

The product of its digits is 120960, while the sum is 42.

The square root of 2758938 is about 1661.0051173913. The cubic root of 2758938 is about 140.2535880069.

The spelling of 2758938 in words is "two million, seven hundred fifty-eight thousand, nine hundred thirty-eight".