10540405 has 4 divisors (see below), whose sum is σ = 12648492. Its totient is φ = 8432320.

The previous prime is 10540381. The next prime is 10540423. The reversal of 10540405 is 50404501.

10540405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50404501 = 7 ⋅7200643.

It can be written as a sum of positive squares in 2 ways, for example, as 4498641 + 6041764 = 2121^2 + 2458^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10540405 is a prime.

It is a super-2 number, since 2×10540405² = 222200275128050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1054036 + ... + 1054045.

It is an arithmetic number, because the mean of its divisors is an integer number (3162123).

Almost surely, 2^10540405 is an apocalyptic number.

It is an amenable number.

10540405 is a deficient number, since it is larger than the sum of its proper divisors (2108087).

10540405 is an equidigital number, since it uses as much as digits as its factorization.

10540405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2108086.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 10540405 is about 3246.5989897122. The cubic root of 10540405 is about 219.2564775906.

Adding to 10540405 its reverse (50404501), we get a palindrome (60944906).

The spelling of 10540405 in words is "ten million, five hundred forty thousand, four hundred five".