10140405 has 48 divisors (see below), whose sum is σ = 18436992. Its totient is φ = 4752000.

The previous prime is 10140397. The next prime is 10140419. The reversal of 10140405 is 50404101.

It is not a de Polignac number, because 10140405 - 2³ = 10140397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 67080 + ... + 67230.

It is an arithmetic number, because the mean of its divisors is an integer number (384104).

Almost surely, 2^10140405 is an apocalyptic number.

10140405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10140405 is a deficient number, since it is larger than the sum of its proper divisors (8296587).

10140405 is a wasteful number, since it uses less digits than its factorization.

10140405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 10140405 is about 3184.4002575053. The cubic root of 10140405 is about 216.4470977492.

Adding to 10140405 its reverse (50404101), we get a palindrome (60544506).

The spelling of 10140405 in words is "ten million, one hundred forty thousand, four hundred five".