10040421 has 8 divisors (see below), whose sum is σ = 14174784. Its totient is φ = 6299840.

The previous prime is 10040413. The next prime is 10040447. The reversal of 10040421 is 12404001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10040421 - 2³ = 10040413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10040397 and 10040406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10040461) 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, 98385 + ... + 98486.

It is an arithmetic number, because the mean of its divisors is an integer number (1771848).

Almost surely, 2^10040421 is an apocalyptic number.

It is an amenable number.

10040421 is a deficient number, since it is larger than the sum of its proper divisors (4134363).

10040421 is a wasteful number, since it uses less digits than its factorization.

10040421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196891.

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

The square root of 10040421 is about 3168.6623360655. The cubic root of 10040421 is about 215.7333601124.

Adding to 10040421 its reverse (12404001), we get a palindrome (22444422).

The spelling of 10040421 in words is "ten million, forty thousand, four hundred twenty-one".