3945303450 has 480 divisors, whose sum is σ = 12963456000. Its totient is φ = 879465600.

The previous prime is 3945303421. The next prime is 3945303457. The reversal of 3945303450 is 543035493.

It is a happy number.

3945303450 is a `hidden beast` number, since 3 + 94 + 530 + 34 + 5 + 0 = 666.

3945303450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3945303457) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 49940511 + ... + 49940589.

It is an arithmetic number, because the mean of its divisors is an integer number (27007200).

Almost surely, 2^3945303450 is an apocalyptic number.

3945303450 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 3945303450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6481728000).

3945303450 is an abundant number, since it is smaller than the sum of its proper divisors (9018152550).

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

3945303450 is a wasteful number, since it uses less digits than its factorization.

3945303450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The square root of 3945303450 is about 62811.6505912717. The cubic root of 3945303450 is about 1580.1323728757.

The spelling of 3945303450 in words is "three billion, nine hundred forty-five million, three hundred three thousand, four hundred fifty".