10440291 has 16 divisors (see below), whose sum is σ = 14762240. Its totient is φ = 6544800.

The previous prime is 10440277. The next prime is 10440299. The reversal of 10440291 is 19204401.

It is not a de Polignac number, because 10440291 - 2⁵ = 10440259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10440299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8001 + ... + 9213.

It is an arithmetic number, because the mean of its divisors is an integer number (922640).

Almost surely, 2^10440291 is an apocalyptic number.

10440291 is a deficient number, since it is larger than the sum of its proper divisors (4321949).

10440291 is a wasteful number, since it uses less digits than its factorization.

10440291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 10440291 is about 3231.1439150864. The cubic root of 10440291 is about 218.5600935762.

Adding to 10440291 its reverse (19204401), we get a palindrome (29644692).

It can be divided in two parts, 10440 and 291, that added together give a triangular number (10731 = T₁₄₆).

The spelling of 10440291 in words is "ten million, four hundred forty thousand, two hundred ninety-one".