1420323156 has 72 divisors (see below), whose sum is σ = 4235538944. Its totient is φ = 392713920.

The previous prime is 1420323139. The next prime is 1420323193. The reversal of 1420323156 is 6513230241.

1420323156 is a `hidden beast` number, since 1 + 420 + 3 + 231 + 5 + 6 = 666.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 83095 + ... + 98718.

Almost surely, 2^1420323156 is an apocalyptic number.

It is an amenable number.

1420323156 is an abundant number, since it is smaller than the sum of its proper divisors (2815215788).

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

1420323156 is a wasteful number, since it uses less digits than its factorization.

1420323156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181861 (or 181856 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1420323156 is about 37687.1749538222. The cubic root of 1420323156 is about 1124.0761220888.

Adding to 1420323156 its reverse (6513230241), we get a palindrome (7933553397).

The spelling of 1420323156 in words is "one billion, four hundred twenty million, three hundred twenty-three thousand, one hundred fifty-six".