1469378221 has 8 divisors (see below), whose sum is σ = 1556146944. Its totient is φ = 1382646720.

The previous prime is 1469378191. The next prime is 1469378227. The reversal of 1469378221 is 1228739641.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1469378221 - 2¹⁵ = 1469345453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1469378227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153156 + ... + 162466.

It is an arithmetic number, because the mean of its divisors is an integer number (194518368).

Almost surely, 2^1469378221 is an apocalyptic number.

It is an amenable number.

1469378221 is a deficient number, since it is larger than the sum of its proper divisors (86768723).

1469378221 is an equidigital number, since it uses as much as digits as its factorization.

1469378221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18611.

The product of its digits is 145152, while the sum is 43.

The square root of 1469378221 is about 38332.4695395431. The cubic root of 1469378221 is about 1136.8710291025.

The spelling of 1469378221 in words is "one billion, four hundred sixty-nine million, three hundred seventy-eight thousand, two hundred twenty-one".