7224735144 has 64 divisors (see below), whose sum is σ = 20236386240. Its totient is φ = 2130140160.

The previous prime is 7224735103. The next prime is 7224735149. The reversal of 7224735144 is 4415374227.

It is a super-4 number, since 4×7224735144⁴ (a number of 41 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (7224735149) 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, 360049 + ... + 379584.

It is an arithmetic number, because the mean of its divisors is an integer number (316193535).

Almost surely, 2^7224735144 is an apocalyptic number.

7224735144 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

7224735144 is an abundant number, since it is smaller than the sum of its proper divisors (13011651096).

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

7224735144 is a wasteful number, since it uses less digits than its factorization.

7224735144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739690 (or 739686 counting only the distinct ones).

The product of its digits is 188160, while the sum is 39.

The square root of 7224735144 is about 84998.4420092510. The cubic root of 7224735144 is about 1933.1874935834.

The spelling of 7224735144 in words is "seven billion, two hundred twenty-four million, seven hundred thirty-five thousand, one hundred forty-four".