1408673889 has 32 divisors (see below), whose sum is σ = 2510592000. Its totient is φ = 762588432.

The previous prime is 1408673881. The next prime is 1408673899. The reversal of 1408673889 is 9883768041.

It is not a de Polignac number, because 1408673889 - 2³ = 1408673881 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1408673881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192549 + ... + 199730.

It is an arithmetic number, because the mean of its divisors is an integer number (78456000).

Almost surely, 2^1408673889 is an apocalyptic number.

1408673889 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1408673889 is a deficient number, since it is larger than the sum of its proper divisors (1101918111).

1408673889 is a wasteful number, since it uses less digits than its factorization.

1408673889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392314 (or 392308 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The square root of 1408673889 is about 37532.3046054995. The cubic root of 1408673889 is about 1120.9945165721.

The spelling of 1408673889 in words is "one billion, four hundred eight million, six hundred seventy-three thousand, eight hundred eighty-nine".