4123025640 has 192 divisors, whose sum is σ = 14233190400. Its totient is φ = 1031510016.

The previous prime is 4123025639. The next prime is 4123025651. The reversal of 4123025640 is 465203214.

4123025640 is a `hidden beast` number, since 4 + 12 + 3 + 0 + 2 + 5 + 640 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2343081 + ... + 2344839.

It is an arithmetic number, because the mean of its divisors is an integer number (74131200).

Almost surely, 2^4123025640 is an apocalyptic number.

4123025640 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 4123025640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7116595200).

4123025640 is an abundant number, since it is smaller than the sum of its proper divisors (10110164760).

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

4123025640 is a wasteful number, since it uses less digits than its factorization.

4123025640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176 (or 2169 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 4123025640 is about 64210.7906819407. The cubic root of 4123025640 is about 1603.5112523468.

Adding to 4123025640 its reverse (465203214), we get a palindrome (4588228854).

The spelling of 4123025640 in words is "four billion, one hundred twenty-three million, twenty-five thousand, six hundred forty".