1420435136 has 56 divisors (see below), whose sum is σ = 3141604080. Its totient is φ = 633249792.

The previous prime is 1420435091. The next prime is 1420435147. The reversal of 1420435136 is 6315340241.

It is a junction number, because it is equal to n+sod(n) for n = 1420435099 and 1420435108.

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 7 ways as a sum of consecutive naturals, for example, 13685 + ... + 55028.

Almost surely, 2^1420435136 is an apocalyptic number.

1420435136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1420435136 is an abundant number, since it is smaller than the sum of its proper divisors (1721168944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1420435136 is a wasteful number, since it uses less digits than its factorization.

1420435136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68761 (or 68751 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1420435136 is about 37688.6605758284. The cubic root of 1420435136 is about 1124.1056624874.

Adding to 1420435136 its reverse (6315340241), we get a palindrome (7735775377).

The spelling of 1420435136 in words is "one billion, four hundred twenty million, four hundred thirty-five thousand, one hundred thirty-six".