1420087628 has 12 divisors (see below), whose sum is σ = 2498884752. Its totient is φ = 706120560.

The previous prime is 1420087567. The next prime is 1420087637. The reversal of 1420087628 is 8267800241.

It is a junction number, because it is equal to n+sod(n) for n = 1420087591 and 1420087600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 980000 + ... + 981447.

It is an arithmetic number, because the mean of its divisors is an integer number (208240396).

Almost surely, 2^1420087628 is an apocalyptic number.

It is an amenable number.

1420087628 is a deficient number, since it is larger than the sum of its proper divisors (1078797124).

1420087628 is a wasteful number, since it uses less digits than its factorization.

1420087628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1961632 (or 1961630 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 1420087628 is about 37684.0500477324. The cubic root of 1420087628 is about 1124.0139845780.

Adding to 1420087628 its reverse (8267800241), we get a palindrome (9687887869).

The spelling of 1420087628 in words is "one billion, four hundred twenty million, eighty-seven thousand, six hundred twenty-eight".