10440420 has 24 divisors (see below), whose sum is σ = 29233344. Its totient is φ = 2784096.

The previous prime is 10440383. The next prime is 10440427. The reversal of 10440420 is 2404401.

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

It is a self number, because there is not a number n which added to its sum of digits gives 10440420.

It is not an unprimeable number, because it can be changed into a prime (10440427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86944 + ... + 87063.

It is an arithmetic number, because the mean of its divisors is an integer number (1218056).

Almost surely, 2^10440420 is an apocalyptic number.

10440420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10440420 is an abundant number, since it is smaller than the sum of its proper divisors (18792924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10440420 is a wasteful number, since it uses less digits than its factorization.

10440420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174019 (or 174017 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 10440420 is about 3231.1638769954. The cubic root of 10440420 is about 218.5609937470.

Adding to 10440420 its reverse (2404401), we get a palindrome (12844821).

The spelling of 10440420 in words is "ten million, four hundred forty thousand, four hundred twenty".