3894929280 has 512 divisors, whose sum is σ = 15557529600. Its totient is φ = 912384000.

The previous prime is 3894929267. The next prime is 3894929281. The reversal of 3894929280 is 829294983.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3894929281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5892150 + ... + 5892810.

It is an arithmetic number, because the mean of its divisors is an integer number (30385800).

Almost surely, 2^3894929280 is an apocalyptic number.

3894929280 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 3894929280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7778764800).

3894929280 is an abundant number, since it is smaller than the sum of its proper divisors (11662600320).

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

3894929280 is a wasteful number, since it uses less digits than its factorization.

3894929280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731 (or 713 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 3894929280 is about 62409.3685274895. The cubic root of 3894929280 is about 1573.3784308309.

The spelling of 3894929280 in words is "three billion, eight hundred ninety-four million, nine hundred twenty-nine thousand, two hundred eighty".