383215140 has 288 divisors, whose sum is σ = 1485259776. Its totient is φ = 77656320.

The previous prime is 383215103. The next prime is 383215141. The reversal of 383215140 is 41512383.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (383215141) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 595659 + ... + 596301.

It is an arithmetic number, because the mean of its divisors is an integer number (5157152).

Almost surely, 2^383215140 is an apocalyptic number.

383215140 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 383215140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (742629888).

383215140 is an abundant number, since it is smaller than the sum of its proper divisors (1102044636).

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

383215140 is a wasteful number, since it uses less digits than its factorization.

383215140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 383215140 is about 19575.8815893436. The cubic root of 383215140 is about 726.3526961480.

The spelling of 383215140 in words is "three hundred eighty-three million, two hundred fifteen thousand, one hundred forty".