3992705250 has 64 divisors (see below), whose sum is σ = 9978733440. Its totient is φ = 1063339200.

The previous prime is 3992705237. The next prime is 3992705257. The reversal of 3992705250 is 525072993.

It is not an unprimeable number, because it can be changed into a prime (3992705257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 659236 + ... + 665264.

It is an arithmetic number, because the mean of its divisors is an integer number (155917710).

Almost surely, 2^3992705250 is an apocalyptic number.

3992705250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3992705250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4989366720).

3992705250 is an abundant number, since it is smaller than the sum of its proper divisors (5986028190).

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

3992705250 is a wasteful number, since it uses less digits than its factorization.

3992705250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6932 (or 6922 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 3992705250 is about 63187.8568239183. The cubic root of 3992705250 is about 1586.4354902839.

The spelling of 3992705250 in words is "three billion, nine hundred ninety-two million, seven hundred five thousand, two hundred fifty".