1046421 has 6 divisors (see below), whose sum is σ = 1511510. Its totient is φ = 697608.

The previous prime is 1046413. The next prime is 1046447. The reversal of 1046421 is 1246401.

It can be written as a sum of positive squares in only one way, i.e., 1028196 + 18225 = 1014^2 + 135^2 .

It is not a de Polignac number, because 1046421 - 2³ = 1046413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1046394 and 1046403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1041421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58126 + ... + 58143.

2^1046421 is an apocalyptic number.

It is an amenable number.

1046421 is a deficient number, since it is larger than the sum of its proper divisors (465089).

1046421 is a wasteful number, since it uses less digits than its factorization.

1046421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116275 (or 116272 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1046421 is about 1022.9472127143. The cubic root of 1046421 is about 101.5240222369.

The spelling of 1046421 in words is "one million, forty-six thousand, four hundred twenty-one".