1420621886 has 4 divisors (see below), whose sum is σ = 2130932832. Its totient is φ = 710310942.

The previous prime is 1420621877. The next prime is 1420621913. The reversal of 1420621886 is 6881260241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6881260241 = 313 ⋅21984857.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355155470 + ... + 355155473.

It is an arithmetic number, because the mean of its divisors is an integer number (532733208).

Almost surely, 2^1420621886 is an apocalyptic number.

1420621886 is a deficient number, since it is larger than the sum of its proper divisors (710310946).

1420621886 is an equidigital number, since it uses as much as digits as its factorization.

1420621886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710310945.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 1420621886 is about 37691.1380300463. The cubic root of 1420621886 is about 1124.1549238083.

The spelling of 1420621886 in words is "one billion, four hundred twenty million, six hundred twenty-one thousand, eight hundred eighty-six".