1444890906 has 32 divisors (see below), whose sum is σ = 3212118720. Its totient is φ = 481442832.

The previous prime is 1444890893. The next prime is 1444890919. The reversal of 1444890906 is 6090984441.

It is an interprime number because it is at equal distance from previous prime (1444890893) and next prime (1444890919).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245656 + ... + 251468.

It is an arithmetic number, because the mean of its divisors is an integer number (100378710).

Almost surely, 2^1444890906 is an apocalyptic number.

1444890906 is an abundant number, since it is smaller than the sum of its proper divisors (1767227814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1444890906 is a wasteful number, since it uses less digits than its factorization.

1444890906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10427 (or 10421 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1444890906 is about 38011.7206398237. The cubic root of 1444890906 is about 1130.5202673820.

The spelling of 1444890906 in words is "one billion, four hundred forty-four million, eight hundred ninety thousand, nine hundred six".