1010405 has 8 divisors (see below), whose sum is σ = 1322784. Its totient is φ = 734800.

The previous prime is 1010381. The next prime is 1010407. The reversal of 1010405 is 5040101.

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

It is not a de Polignac number, because 1010405 - 2¹² = 1006309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9131 + ... + 9240.

It is an arithmetic number, because the mean of its divisors is an integer number (165348).

2^1010405 is an apocalyptic number.

It is an amenable number.

1010405 is a deficient number, since it is larger than the sum of its proper divisors (312379).

1010405 is a wasteful number, since it uses less digits than its factorization.

1010405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18387.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1010405 is about 1005.1890369478. The cubic root of 1010405 is about 100.3456373055.

Adding to 1010405 its reverse (5040101), we get a palindrome (6050506).

The spelling of 1010405 in words is "one million, ten thousand, four hundred five".