1421644341 has 16 divisors (see below), whose sum is σ = 2044498176. Its totient is φ = 873502656.

The previous prime is 1421644339. The next prime is 1421644349. The reversal of 1421644341 is 1434461241.

It is not a de Polignac number, because 1421644341 - 2¹ = 1421644339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1421644299 and 1421644308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421644349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2445 + ... + 53378.

It is an arithmetic number, because the mean of its divisors is an integer number (127781136).

Almost surely, 2^1421644341 is an apocalyptic number.

It is an amenable number.

1421644341 is a deficient number, since it is larger than the sum of its proper divisors (622853835).

1421644341 is a wasteful number, since it uses less digits than its factorization.

1421644341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56492.

The product of its digits is 9216, while the sum is 30.

The square root of 1421644341 is about 37704.6991898888. The cubic root of 1421644341 is about 1124.4245527162.

The spelling of 1421644341 in words is "one billion, four hundred twenty-one million, six hundred forty-four thousand, three hundred forty-one".