1484399909 has 4 divisors (see below), whose sum is σ = 1562526240. Its totient is φ = 1406273580.

The previous prime is 1484399899. The next prime is 1484399927. The reversal of 1484399909 is 9099934841.

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 cyclic number.

It is not a de Polignac number, because 1484399909 - 2¹² = 1484395813 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 (1484392909) 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, 39063137 + ... + 39063174.

It is an arithmetic number, because the mean of its divisors is an integer number (390631560).

Almost surely, 2^1484399909 is an apocalyptic number.

1484399909 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1484399909 is a deficient number, since it is larger than the sum of its proper divisors (78126331).

1484399909 is an equidigital number, since it uses as much as digits as its factorization.

1484399909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78126330.

The product of its (nonzero) digits is 2519424, while the sum is 56.

The square root of 1484399909 is about 38527.9107790703. The cubic root of 1484399909 is about 1140.7320395741.

The spelling of 1484399909 in words is "one billion, four hundred eighty-four million, three hundred ninety-nine thousand, nine hundred nine".