428170149 has 24 divisors (see below), whose sum is σ = 710205600. Its totient is φ = 245838240.

The previous prime is 428170117. The next prime is 428170151. The reversal of 428170149 is 941071824.

It is not a de Polignac number, because 428170149 - 2⁵ = 428170117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428170349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111934 + ... + 115695.

It is an arithmetic number, because the mean of its divisors is an integer number (29591900).

Almost surely, 2^428170149 is an apocalyptic number.

It is an amenable number.

428170149 is a deficient number, since it is larger than the sum of its proper divisors (282035451).

428170149 is a wasteful number, since it uses less digits than its factorization.

428170149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227665 (or 227662 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 428170149 is about 20692.2726881317. The cubic root of 428170149 is about 753.7120558773.

The spelling of 428170149 in words is "four hundred twenty-eight million, one hundred seventy thousand, one hundred forty-nine".