7481534448 has 40 divisors (see below), whose sum is σ = 19738522368. Its totient is φ = 2440783552.

The previous prime is 7481534443. The next prime is 7481534519. The reversal of 7481534448 is 8444351847.

It is a super-2 number, since 2×7481534448² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 7481534397 and 7481534406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7481534441) 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, 1655886 + ... + 1660397.

Almost surely, 2^7481534448 is an apocalyptic number.

It is an amenable number.

7481534448 is an abundant number, since it is smaller than the sum of its proper divisors (12256987920).

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

7481534448 is a wasteful number, since it uses less digits than its factorization.

7481534448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3316341 (or 3316335 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 48.

The square root of 7481534448 is about 86495.8637623788. The cubic root of 7481534448 is about 1955.8260516687.

The spelling of 7481534448 in words is "seven billion, four hundred eighty-one million, five hundred thirty-four thousand, four hundred forty-eight".