7438881 has 4 divisors (see below), whose sum is σ = 9918512. Its totient is φ = 4959252.

The previous prime is 7438841. The next prime is 7438891. The reversal of 7438881 is 1888347.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1888347 = 3 ⋅629449.

It is not a de Polignac number, because 7438881 - 2¹¹ = 7436833 is a prime.

It is a super-2 number, since 2×7438881² = 110673901064322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7438801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1239811 + ... + 1239816.

It is an arithmetic number, because the mean of its divisors is an integer number (2479628).

Almost surely, 2^7438881 is an apocalyptic number.

It is an amenable number.

7438881 is a deficient number, since it is larger than the sum of its proper divisors (2479631).

7438881 is a wasteful number, since it uses less digits than its factorization.

7438881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2479630.

The product of its digits is 43008, while the sum is 39.

The square root of 7438881 is about 2727.4312090317. The cubic root of 7438881 is about 195.2102138037.

The spelling of 7438881 in words is "seven million, four hundred thirty-eight thousand, eight hundred eighty-one".