3942425520 has 800 divisors, whose sum is σ = 16333954560. Its totient is φ = 870912000.

The previous prime is 3942425507. The next prime is 3942425521. The reversal of 3942425520 is 255242493.

3942425520 is a `hidden beast` number, since 3 + 94 + 2 + 42 + 5 + 520 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (3942425521) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 55527085 + ... + 55527155.

Almost surely, 2^3942425520 is an apocalyptic number.

3942425520 is a gapful number since it is divisible by the number (30) 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 3942425520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8166977280).

3942425520 is an abundant number, since it is smaller than the sum of its proper divisors (12391529040).

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

3942425520 is a wasteful number, since it uses less digits than its factorization.

3942425520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 3942425520 is about 62788.7372066042. The cubic root of 3942425520 is about 1579.7480664378.

The spelling of 3942425520 in words is "three billion, nine hundred forty-two million, four hundred twenty-five thousand, five hundred twenty".