10421404 has 24 divisors (see below), whose sum is σ = 21288960. Its totient is φ = 4370736.

The previous prime is 10421401. The next prime is 10421413. The reversal of 10421404 is 40412401.

It is a super-2 number, since 2×10421404² = 217211322662432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10421401) 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, 2644 + ... + 5275.

It is an arithmetic number, because the mean of its divisors is an integer number (887040).

Almost surely, 2^10421404 is an apocalyptic number.

10421404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

10421404 is an abundant number, since it is smaller than the sum of its proper divisors (10867556).

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

10421404 is a wasteful number, since it uses less digits than its factorization.

10421404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7977 (or 7975 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 10421404 is about 3228.2199429407. The cubic root of 10421404 is about 218.4282187013.

Adding to 10421404 its reverse (40412401), we get a palindrome (50833805).

The spelling of 10421404 in words is "ten million, four hundred twenty-one thousand, four hundred four".