1411644421 has 4 divisors (see below), whose sum is σ = 1539975744. Its totient is φ = 1283313100.

The previous prime is 1411644383. The next prime is 1411644439. The reversal of 1411644421 is 1244461141.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1411644421 - 2⁷ = 1411644293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1411644421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1411644491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64165645 + ... + 64165666.

It is an arithmetic number, because the mean of its divisors is an integer number (384993936).

Almost surely, 2^1411644421 is an apocalyptic number.

1411644421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1411644421 is a deficient number, since it is larger than the sum of its proper divisors (128331323).

1411644421 is a wasteful number, since it uses less digits than its factorization.

1411644421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128331322.

The product of its digits is 3072, while the sum is 28.

The square root of 1411644421 is about 37571.8567680651. The cubic root of 1411644421 is about 1121.7819266739.

The spelling of 1411644421 in words is "one billion, four hundred eleven million, six hundred forty-four thousand, four hundred twenty-one".