7445646 has 48 divisors (see below), whose sum is σ = 17769024. Its totient is φ = 2238912.

The previous prime is 7445639. The next prime is 7445653. The reversal of 7445646 is 6465447.

7445646 is a `hidden beast` number, since 7 + 4 + 4 + 5 + 646 = 666.

7445646 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (7445639) and next prime (7445653).

It is a self number, because there is not a number n which added to its sum of digits gives 7445646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10660 + ... + 11336.

It is an arithmetic number, because the mean of its divisors is an integer number (370188).

Almost surely, 2^7445646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7445646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8884512).

7445646 is an abundant number, since it is smaller than the sum of its proper divisors (10323378).

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

7445646 is a wasteful number, since it uses less digits than its factorization.

7445646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745 (or 742 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 7445646 is about 2728.6711051352. The cubic root of 7445646 is about 195.2693713112.

The spelling of 7445646 in words is "seven million, four hundred forty-five thousand, six hundred forty-six".