1420427441 has 4 divisors (see below), whose sum is σ = 1495186800. Its totient is φ = 1345668084.

The previous prime is 1420427387. The next prime is 1420427443. The reversal of 1420427441 is 1447240241.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1447240241 = 19 ⋅76170539.

It is not a de Polignac number, because 1420427441 - 2⁶ = 1420427377 is a prime.

It is a super-2 number, since 2×1420427441² = 4035228230291616962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1420427443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37379651 + ... + 37379688.

It is an arithmetic number, because the mean of its divisors is an integer number (373796700).

Almost surely, 2^1420427441 is an apocalyptic number.

It is an amenable number.

1420427441 is a deficient number, since it is larger than the sum of its proper divisors (74759359).

1420427441 is an equidigital number, since it uses as much as digits as its factorization.

1420427441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74759358.

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 1420427441 is about 37688.5584892816. The cubic root of 1420427441 is about 1124.1036325909.

Adding to 1420427441 its reverse (1447240241), we get a palindrome (2867667682).

The spelling of 1420427441 in words is "one billion, four hundred twenty million, four hundred twenty-seven thousand, four hundred forty-one".