3945285396 has 216 divisors, whose sum is σ = 11390652000. Its totient is φ = 1149168384.

The previous prime is 3945285341. The next prime is 3945285413. The reversal of 3945285396 is 6935825493.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10409535 + ... + 10409913.

It is an arithmetic number, because the mean of its divisors is an integer number (52734500).

Almost surely, 2^3945285396 is an apocalyptic number.

3945285396 is a gapful number since it is divisible by the number (36) 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 3945285396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5695326000).

3945285396 is an abundant number, since it is smaller than the sum of its proper divisors (7445366604).

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

3945285396 is a wasteful number, since it uses less digits than its factorization.

3945285396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503 (or 485 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 54.

The square root of 3945285396 is about 62811.5068757310. The cubic root of 3945285396 is about 1580.1299626045.

The spelling of 3945285396 in words is "three billion, nine hundred forty-five million, two hundred eighty-five thousand, three hundred ninety-six".