2750438 has 4 divisors (see below), whose sum is σ = 4125660. Its totient is φ = 1375218.

The previous prime is 2750437. The next prime is 2750453. The reversal of 2750438 is 8340572.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2750438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2750431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687608 + ... + 687611.

It is an arithmetic number, because the mean of its divisors is an integer number (1031415).

2^2750438 is an apocalyptic number.

2750438 is a deficient number, since it is larger than the sum of its proper divisors (1375222).

2750438 is a wasteful number, since it uses less digits than its factorization.

2750438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375221.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 2750438 is about 1658.4444518886. Note that the first 4 decimals coincide. The cubic root of 2750438 is about 140.1094042787.

The spelling of 2750438 in words is "two million, seven hundred fifty thousand, four hundred thirty-eight".