7493040 has 80 divisors (see below), whose sum is σ = 25816800. Its totient is φ = 1997568.

The previous prime is 7493033. The next prime is 7493053. The reversal of 7493040 is 403947.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×7493040² = 112291296883200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 7492995 and 7493013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426 + ... + 3894.

It is an arithmetic number, because the mean of its divisors is an integer number (322710).

Almost surely, 2^7493040 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 7493040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12908400).

7493040 is an abundant number, since it is smaller than the sum of its proper divisors (18323760).

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

7493040 is a wasteful number, since it uses less digits than its factorization.

7493040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491 (or 3479 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 7493040 is about 2737.3417762494. The cubic root of 7493040 is about 195.6828133658.

Adding to 7493040 its reverse (403947), we get a palindrome (7896987).

The spelling of 7493040 in words is "seven million, four hundred ninety-three thousand, forty".