4087520442 has 64 divisors (see below), whose sum is σ = 9216547200. Its totient is φ = 1342656000.

The previous prime is 4087520401. The next prime is 4087520473. The reversal of 4087520442 is 2440257804.

4087520442 is a `hidden beast` number, since 408 + 7 + 5 + 204 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 4087520397 and 4087520406.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1313184 + ... + 1316292.

It is an arithmetic number, because the mean of its divisors is an integer number (144008550).

Almost surely, 2^4087520442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4087520442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4608273600).

4087520442 is an abundant number, since it is smaller than the sum of its proper divisors (5129026758).

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

4087520442 is a wasteful number, since it uses less digits than its factorization.

4087520442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3468 (or 3462 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 4087520442 is about 63933.7191316132. The cubic root of 4087520442 is about 1598.8951280973.

The spelling of 4087520442 in words is "four billion, eighty-seven million, five hundred twenty thousand, four hundred forty-two".