7284540144 has 80 divisors (see below), whose sum is σ = 21728553728. Its totient is φ = 2059831296.

The previous prime is 7284540143. The next prime is 7284540149. The reversal of 7284540144 is 4410454827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7284540143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79162 + ... + 144345.

Almost surely, 2^7284540144 is an apocalyptic number.

It is an amenable number.

7284540144 is an abundant number, since it is smaller than the sum of its proper divisors (14444013584).

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

7284540144 is a wasteful number, since it uses less digits than its factorization.

7284540144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223622 (or 223616 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 39.

The square root of 7284540144 is about 85349.5175381794. The cubic root of 7284540144 is about 1938.5070300408.

The spelling of 7284540144 in words is "seven billion, two hundred eighty-four million, five hundred forty thousand, one hundred forty-four".