1421788033 has 4 divisors (see below), whose sum is σ = 1483604928. Its totient is φ = 1359971140.

The previous prime is 1421788019. The next prime is 1421788051. The reversal of 1421788033 is 3308871241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-1421788033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1421787983 and 1421788001.

It is not an unprimeable number, because it can be changed into a prime (1421788003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30908413 + ... + 30908458.

It is an arithmetic number, because the mean of its divisors is an integer number (370901232).

Almost surely, 2^1421788033 is an apocalyptic number.

It is an amenable number.

1421788033 is a deficient number, since it is larger than the sum of its proper divisors (61816895).

1421788033 is an equidigital number, since it uses as much as digits as its factorization.

1421788033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61816894.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 1421788033 is about 37706.6046336713. The cubic root of 1421788033 is about 1124.4624349922.

The spelling of 1421788033 in words is "one billion, four hundred twenty-one million, seven hundred eighty-eight thousand, thirty-three".