10140420 has 24 divisors (see below), whose sum is σ = 28393344. Its totient is φ = 2704096.

The previous prime is 10140419. The next prime is 10140421. The reversal of 10140420 is 2404101.

It is an interprime number because it is at equal distance from previous prime (10140419) and next prime (10140421).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10140396 and 10140405.

It is not an unprimeable number, because it can be changed into a prime (10140421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84444 + ... + 84563.

It is an arithmetic number, because the mean of its divisors is an integer number (1183056).

Almost surely, 2^10140420 is an apocalyptic number.

10140420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10140420 is an abundant number, since it is smaller than the sum of its proper divisors (18252924).

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

10140420 is a wasteful number, since it uses less digits than its factorization.

10140420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169019 (or 169017 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 10140420 is about 3184.4026127360. The cubic root of 10140420 is about 216.4472044742.

Adding to 10140420 its reverse (2404101), we get a palindrome (12544521).

The spelling of 10140420 in words is "ten million, one hundred forty thousand, four hundred twenty".