1420664441 has 32 divisors (see below), whose sum is σ = 1744174080. Its totient is φ = 1131379200.

The previous prime is 1420664423. The next prime is 1420664459. The reversal of 1420664441 is 1444660241.

It is an interprime number because it is at equal distance from previous prime (1420664423) and next prime (1420664459).

It is not a de Polignac number, because 1420664441 - 2¹⁴ = 1420648057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1420664398 and 1420664407.

It is not an unprimeable number, because it can be changed into a prime (1420664411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 580781 + ... + 583221.

It is an arithmetic number, because the mean of its divisors is an integer number (54505440).

Almost surely, 2^1420664441 is an apocalyptic number.

It is an amenable number.

1420664441 is a deficient number, since it is larger than the sum of its proper divisors (323509639).

1420664441 is a wasteful number, since it uses less digits than its factorization.

1420664441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2585.

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 1420664441 is about 37691.7025484390. The cubic root of 1420664441 is about 1124.1661484547.

The spelling of 1420664441 in words is "one billion, four hundred twenty million, six hundred sixty-four thousand, four hundred forty-one".