381253230 has 80 divisors (see below), whose sum is σ = 1033260624. Its totient is φ = 100863360.

The previous prime is 381253199. The next prime is 381253253. The reversal of 381253230 is 32352183.

381253230 is a `hidden beast` number, since 381 + 2 + 53 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 381253194 and 381253203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 104314 + ... + 107906.

Almost surely, 2^381253230 is an apocalyptic number.

381253230 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 381253230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (516630312).

381253230 is an abundant number, since it is smaller than the sum of its proper divisors (652007394).

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

381253230 is a wasteful number, since it uses less digits than its factorization.

381253230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743 (or 3734 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 381253230 is about 19525.7069014159. The cubic root of 381253230 is about 725.1110285766. Note that the first 3 decimals are identical.

The spelling of 381253230 in words is "three hundred eighty-one million, two hundred fifty-three thousand, two hundred thirty".