383860421 has 16 divisors (see below), whose sum is σ = 451608576. Its totient is φ = 319452336.

The previous prime is 383860417. The next prime is 383860429. The reversal of 383860421 is 124068383.

It is a happy number.

It is not a de Polignac number, because 383860421 - 2² = 383860417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (383860429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37190 + ... + 46376.

It is an arithmetic number, because the mean of its divisors is an integer number (28225536).

Almost surely, 2^383860421 is an apocalyptic number.

It is an amenable number.

383860421 is a deficient number, since it is larger than the sum of its proper divisors (67748155).

383860421 is a wasteful number, since it uses less digits than its factorization.

383860421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9368.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 383860421 is about 19592.3561880648. The cubic root of 383860421 is about 726.7601598370.

The spelling of 383860421 in words is "three hundred eighty-three million, eight hundred sixty thousand, four hundred twenty-one".