7374240 has 120 divisors (see below), whose sum is σ = 26070660. Its totient is φ = 1963008.

The previous prime is 7374197. The next prime is 7374247. The reversal of 7374240 is 424737.

It can be written as a sum of positive squares in 2 ways, for example, as 6906384 + 467856 = 2628^2 + 684^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (7374247) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12676 + ... + 13244.

Almost surely, 2^7374240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7374240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13035330).

7374240 is an abundant number, since it is smaller than the sum of its proper divisors (18696420).

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

7374240 is a wasteful number, since it uses less digits than its factorization.

7374240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 579 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 7374240 is about 2715.5551918530. Note that the first 3 decimals coincide. The cubic root of 7374240 is about 194.6431342876.

Adding to 7374240 its reverse (424737), we get a palindrome (7798977).

The spelling of 7374240 in words is "seven million, three hundred seventy-four thousand, two hundred forty".