428909149 has 8 divisors (see below), whose sum is σ = 443232000. Its totient is φ = 414616800.

The previous prime is 428909137. The next prime is 428909171. The reversal of 428909149 is 941909824.

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 428909149 - 2¹³ = 428900957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 428909099 and 428909108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428909749) 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, 22977 + ... + 37225.

It is an arithmetic number, because the mean of its divisors is an integer number (55404000).

Almost surely, 2^428909149 is an apocalyptic number.

It is an amenable number.

428909149 is a deficient number, since it is larger than the sum of its proper divisors (14322851).

428909149 is a wasteful number, since it uses less digits than its factorization.

428909149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15251.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 428909149 is about 20710.1218972753. The cubic root of 428909149 is about 754.1454295957.

The spelling of 428909149 in words is "four hundred twenty-eight million, nine hundred nine thousand, one hundred forty-nine".