7440147 has 64 divisors (see below), whose sum is σ = 13547520. Its totient is φ = 3974400.

The previous prime is 7440127. The next prime is 7440151. The reversal of 7440147 is 7410447.

It is not a de Polignac number, because 7440147 - 2¹¹ = 7438099 is a prime.

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

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 7440147.

It is not an unprimeable number, because it can be changed into a prime (7440107) 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 63 ways as a sum of consecutive naturals, for example, 158278 + ... + 158324.

It is an arithmetic number, because the mean of its divisors is an integer number (211680).

Almost surely, 2^7440147 is an apocalyptic number.

7440147 is a deficient number, since it is larger than the sum of its proper divisors (6107373).

7440147 is a wasteful number, since it uses less digits than its factorization.

7440147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 7440147 is about 2727.6632856715. The cubic root of 7440147 is about 195.2212872484.

The spelling of 7440147 in words is "seven million, four hundred forty thousand, one hundred forty-seven".