7440898 has 8 divisors (see below), whose sum is σ = 11178108. Its totient is φ = 3714864.

The previous prime is 7440893. The next prime is 7440943. The reversal of 7440898 is 8980447.

It can be written as a sum of positive squares in 2 ways, for example, as 7306209 + 134689 = 2703^2 + 367^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7440898.

It is not an unprimeable number, because it can be changed into a prime (7440893) 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, 861 + ... + 3952.

Almost surely, 2^7440898 is an apocalyptic number.

7440898 is a deficient number, since it is larger than the sum of its proper divisors (3737210).

7440898 is a wasteful number, since it uses less digits than its factorization.

7440898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5588.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 7440898 is about 2727.8009458170. The cubic root of 7440898 is about 195.2278554991.

It can be divided in two parts, 7440 and 898, that added together give a palindrome (8338).

The spelling of 7440898 in words is "seven million, four hundred forty thousand, eight hundred ninety-eight".