7445880 has 192 divisors, whose sum is σ = 27387360. Its totient is φ = 1741824.

The previous prime is 7445873. The next prime is 7445897. The reversal of 7445880 is 885447.

7445880 is a `hidden beast` number, since 74 + 4 + 588 + 0 = 666.

It is a super-2 number, since 2×7445880² = 110882257948800, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 173139 + ... + 173181.

Almost surely, 2^7445880 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 7445880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13693680).

7445880 is an abundant number, since it is smaller than the sum of its proper divisors (19941480).

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

7445880 is a wasteful number, since it uses less digits than its factorization.

7445880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 7445880 is about 2728.7139828131. The cubic root of 7445880 is about 195.2714169163.

It can be divided in two parts, 74 and 45880, that added together give a palindrome (45954).

The spelling of 7445880 in words is "seven million, four hundred forty-five thousand, eight hundred eighty".