1420403523 has 24 divisors (see below), whose sum is σ = 2403357120. Its totient is φ = 737871120.

The previous prime is 1420403521. The next prime is 1420403527. The reversal of 1420403523 is 3253040241.

It is not a de Polignac number, because 1420403523 - 2¹ = 1420403521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1420403493 and 1420403502.

It is not an unprimeable number, because it can be changed into a prime (1420403521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 437593 + ... + 440826.

It is an arithmetic number, because the mean of its divisors is an integer number (100139880).

Almost surely, 2^1420403523 is an apocalyptic number.

1420403523 is a deficient number, since it is larger than the sum of its proper divisors (982953597).

1420403523 is a wasteful number, since it uses less digits than its factorization.

1420403523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878447 (or 878440 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 1420403523 is about 37688.2411767915. The cubic root of 1420403523 is about 1124.0973231142.

Adding to 1420403523 its reverse (3253040241), we get a palindrome (4673443764).

The spelling of 1420403523 in words is "one billion, four hundred twenty million, four hundred three thousand, five hundred twenty-three".