4025123720 has 64 divisors (see below), whose sum is σ = 9128246400. Its totient is φ = 1597358080.

The previous prime is 4025123657. The next prime is 4025123741. The reversal of 4025123720 is 273215204.

It is a super-2 number, since 2×4025123720² = 32403241922613276800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4025123720.

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 15 ways as a sum of consecutive naturals, for example, 3196451 + ... + 3197709.

It is an arithmetic number, because the mean of its divisors is an integer number (142628850).

Almost surely, 2^4025123720 is an apocalyptic number.

4025123720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4025123720 is an abundant number, since it is smaller than the sum of its proper divisors (5103122680).

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

4025123720 is a wasteful number, since it uses less digits than its factorization.

4025123720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838 (or 1834 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 4025123720 is about 63443.8627449496. The cubic root of 4025123720 is about 1590.7175696541.

Adding to 4025123720 its reverse (273215204), we get a palindrome (4298338924).

The spelling of 4025123720 in words is "four billion, twenty-five million, one hundred twenty-three thousand, seven hundred twenty".