4561407720 has 96 divisors (see below), whose sum is σ = 14955899400. Its totient is φ = 1205600256.

The previous prime is 4561407703. The next prime is 4561407731. The reversal of 4561407720 is 277041654.

4561407720 is a `hidden beast` number, since 4 + 561 + 4 + 0 + 77 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 816702084 + 3744705636 = 28578^2 + 61194^2 .

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 (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15385 + ... + 96744.

Almost surely, 2^4561407720 is an apocalyptic number.

4561407720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4561407720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7477949700).

4561407720 is an abundant number, since it is smaller than the sum of its proper divisors (10394491680).

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

4561407720 is a wasteful number, since it uses less digits than its factorization.

4561407720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112259 (or 112252 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 4561407720 is about 67538.1945272451. The cubic root of 4561407720 is about 1658.4394924984.

The spelling of 4561407720 in words is "four billion, five hundred sixty-one million, four hundred seven thousand, seven hundred twenty".