403148389 has 8 divisors (see below), whose sum is σ = 463568960. Its totient is φ = 343434816.

The previous prime is 403148341. The next prime is 403148423. The reversal of 403148389 is 983841304.

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

It is a cyclic number.

It is not a de Polignac number, because 403148389 - 2⁷ = 403148261 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 (403148309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175524 + ... + 177805.

It is an arithmetic number, because the mean of its divisors is an integer number (57946120).

Almost surely, 2^403148389 is an apocalyptic number.

It is an amenable number.

403148389 is a deficient number, since it is larger than the sum of its proper divisors (60420571).

403148389 is a wasteful number, since it uses less digits than its factorization.

403148389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353499.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 403148389 is about 20078.5554510278. Note that the first 3 decimals coincide. The cubic root of 403148389 is about 738.7343773006.

The spelling of 403148389 in words is "four hundred three million, one hundred forty-eight thousand, three hundred eighty-nine".