381070019 has 6 divisors (see below), whose sum is σ = 418862220. Its totient is φ = 346427180.

The previous prime is 381070007. The next prime is 381070043. The reversal of 381070019 is 910070183.

It is a de Polignac number, because none of the positive numbers 2^k-381070019 is a prime.

It is a super-2 number, since 2×381070019² = 290428718761320722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 381069973 and 381070000.

It is not an unprimeable number, because it can be changed into a prime (381070619) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1574549 + ... + 1574790.

It is an arithmetic number, because the mean of its divisors is an integer number (69810370).

Almost surely, 2^381070019 is an apocalyptic number.

381070019 is a deficient number, since it is larger than the sum of its proper divisors (37792201).

381070019 is a wasteful number, since it uses less digits than its factorization.

381070019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149361 (or 3149350 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 381070019 is about 19521.0148045638. The cubic root of 381070019 is about 724.9948594166.

The spelling of 381070019 in words is "three hundred eighty-one million, seventy thousand, nineteen".