10440021435 has 32 divisors (see below), whose sum is σ = 17250981888. Its totient is φ = 5385864960.

The previous prime is 10440021433. The next prime is 10440021443. The reversal of 10440021435 is 53412004401.

It is not a de Polignac number, because 10440021435 - 2¹ = 10440021433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10440021433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1369344 + ... + 1376946.

It is an arithmetic number, because the mean of its divisors is an integer number (539093184).

Almost surely, 2^10440021435 is an apocalyptic number.

10440021435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10440021435 is a deficient number, since it is larger than the sum of its proper divisors (6810960453).

10440021435 is a wasteful number, since it uses less digits than its factorization.

10440021435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10595.

The product of its (nonzero) digits is 1920, while the sum is 24.

Adding to 10440021435 its reverse (53412004401), we get a palindrome (63852025836).

The spelling of 10440021435 in words is "ten billion, four hundred forty million, twenty-one thousand, four hundred thirty-five".