7378740 has 36 divisors (see below), whose sum is σ = 22382724. Its totient is φ = 1967616.

The previous prime is 7378739. The next prime is 7378741. The reversal of 7378740 is 478737.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7378739) and next prime (7378741).

It can be written as a sum of positive squares in 2 ways, for example, as 1790244 + 5588496 = 1338^2 + 2364^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7378695 and 7378704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7378741) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 20317 + ... + 20676.

Almost surely, 2^7378740 is an apocalyptic number.

It is an amenable number.

7378740 is an abundant number, since it is smaller than the sum of its proper divisors (15003984).

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

7378740 is a wasteful number, since it uses less digits than its factorization.

7378740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41008 (or 41003 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 7378740 is about 2716.3836253372. The cubic root of 7378740 is about 194.6827187510.

It can be divided in two parts, 7378 and 740, that added together give a palindrome (8118).

The spelling of 7378740 in words is "seven million, three hundred seventy-eight thousand, seven hundred forty".