1420020433 has 16 divisors (see below), whose sum is σ = 1579507776. Its totient is φ = 1268285760.

The previous prime is 1420020431. The next prime is 1420020451. The reversal of 1420020433 is 3340200241.

It is a cyclic number.

It is not a de Polignac number, because 1420020433 - 2¹ = 1420020431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1420020433.

It is not an unprimeable number, because it can be changed into a prime (1420020431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47943 + ... + 71683.

It is an arithmetic number, because the mean of its divisors is an integer number (98719236).

Almost surely, 2^1420020433 is an apocalyptic number.

1420020433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1420020433 is a deficient number, since it is larger than the sum of its proper divisors (159487343).

1420020433 is a wasteful number, since it uses less digits than its factorization.

1420020433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23904.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1420020433 is about 37683.1584796179. The cubic root of 1420020433 is about 1123.9962557868.

Adding to 1420020433 its reverse (3340200241), we get a palindrome (4760220674).

The spelling of 1420020433 in words is "one billion, four hundred twenty million, twenty thousand, four hundred thirty-three".