1040421 has 8 divisors (see below), whose sum is σ = 1460320. Its totient is φ = 657072.

The previous prime is 1040419. The next prime is 1040447. The reversal of 1040421 is 1240401.

1040421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1040421 - 2¹ = 1040419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1040397 and 1040406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040411) 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, 9070 + ... + 9183.

It is an arithmetic number, because the mean of its divisors is an integer number (182540).

2^1040421 is an apocalyptic number.

It is an amenable number.

1040421 is a deficient number, since it is larger than the sum of its proper divisors (419899).

1040421 is a wasteful number, since it uses less digits than its factorization.

1040421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18275.

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

The square root of 1040421 is about 1020.0102940657. The cubic root of 1040421 is about 101.3296096950.

Adding to 1040421 its reverse (1240401), we get a palindrome (2280822).

The spelling of 1040421 in words is "one million, forty thousand, four hundred twenty-one".