381288030 has 16 divisors (see below), whose sum is σ = 915091344. Its totient is φ = 101676800.

The previous prime is 381288013. The next prime is 381288073. The reversal of 381288030 is 30882183.

It is a junction number, because it is equal to n+sod(n) for n = 381287982 and 381288000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6354771 + ... + 6354830.

It is an arithmetic number, because the mean of its divisors is an integer number (57193209).

Almost surely, 2^381288030 is an apocalyptic number.

381288030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

381288030 is an abundant number, since it is smaller than the sum of its proper divisors (533803314).

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

381288030 is a wasteful number, since it uses less digits than its factorization.

381288030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12709611.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 381288030 is about 19526.5980139911. The cubic root of 381288030 is about 725.1330901130.

The spelling of 381288030 in words is "three hundred eighty-one million, two hundred eighty-eight thousand, thirty".