10381018 has 8 divisors (see below), whose sum is σ = 15609780. Its totient is φ = 5177760.

The previous prime is 10381013. The next prime is 10381039. The reversal of 10381018 is 81018301.

It can be written as a sum of positive squares in 2 ways, for example, as 5745609 + 4635409 = 2397^2 + 2153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 10381018.

It is not an unprimeable number, because it can be changed into a prime (10381013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5323 + ... + 7006.

Almost surely, 2^10381018 is an apocalyptic number.

10381018 is a deficient number, since it is larger than the sum of its proper divisors (5228762).

10381018 is a wasteful number, since it uses less digits than its factorization.

10381018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12752.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 10381018 is about 3221.9587210267. The cubic root of 10381018 is about 218.1456956086.

Adding to 10381018 its reverse (81018301), we get a palindrome (91399319).

It can be divided in two parts, 10 and 381018, that multiplied together give a triangular number (3810180 = T₂₇₆₀).

The spelling of 10381018 in words is "ten million, three hundred eighty-one thousand, eighteen".