1489923405 has 24 divisors (see below), whose sum is σ = 2584921248. Its totient is φ = 793891296.

The previous prime is 1489923389. The next prime is 1489923467. The reversal of 1489923405 is 5043299841.

It is not a de Polignac number, because 1489923405 - 2⁴ = 1489923389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35794 + ... + 65276.

It is an arithmetic number, because the mean of its divisors is an integer number (107705052).

Almost surely, 2^1489923405 is an apocalyptic number.

1489923405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1489923405 is a deficient number, since it is larger than the sum of its proper divisors (1094997843).

1489923405 is a wasteful number, since it uses less digits than its factorization.

1489923405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30617 (or 30614 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 1489923405 is about 38599.5259685919. The cubic root of 1489923405 is about 1142.1451874608.

The spelling of 1489923405 in words is "one billion, four hundred eighty-nine million, nine hundred twenty-three thousand, four hundred five".