7454240172 has 144 divisors (see below), whose sum is σ = 20450102400. Its totient is φ = 2280807936.

The previous prime is 7454240161. The next prime is 7454240197. The reversal of 7454240172 is 2710424547.

7454240172 is a `hidden beast` number, since 7 + 4 + 542 + 40 + 1 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4386579 + ... + 4388277.

It is an arithmetic number, because the mean of its divisors is an integer number (142014600).

Almost surely, 2^7454240172 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7454240172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10225051200).

7454240172 is an abundant number, since it is smaller than the sum of its proper divisors (12995862228).

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

7454240172 is a wasteful number, since it uses less digits than its factorization.

7454240172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1900 (or 1895 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 36.

The square root of 7454240172 is about 86337.9416710869. The cubic root of 7454240172 is about 1953.4447262076. Note that the first 3 decimals are identical.

The spelling of 7454240172 in words is "seven billion, four hundred fifty-four million, two hundred forty thousand, one hundred seventy-two".