7445881 has 8 divisors (see below), whose sum is σ = 8052480. Its totient is φ = 6858048.

The previous prime is 7445873. The next prime is 7445897. The reversal of 7445881 is 1885447.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7445881 - 2³ = 7445873 is a prime.

It is a super-2 number, since 2×7445881² = 110882287732322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7445881.

It is not an unprimeable number, because it can be changed into a prime (7445831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3861 + ... + 5458.

It is an arithmetic number, because the mean of its divisors is an integer number (1006560).

Almost surely, 2^7445881 is an apocalyptic number.

It is an amenable number.

7445881 is a deficient number, since it is larger than the sum of its proper divisors (606599).

7445881 is a wasteful number, since it uses less digits than its factorization.

7445881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9383.

The product of its digits is 35840, while the sum is 37.

The square root of 7445881 is about 2728.7141660496. The cubic root of 7445881 is about 195.2714256581.

The spelling of 7445881 in words is "seven million, four hundred forty-five thousand, eight hundred eighty-one".