428950 has 24 divisors (see below), whose sum is σ = 834768. Its totient is φ = 163680.

The previous prime is 428899. The next prime is 428951. The reversal of 428950 is 59824.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 964 + ... + 1336.

It is an arithmetic number, because the mean of its divisors is an integer number (34782).

2⁴²⁸⁹⁵⁰ is an apocalyptic number.

428950 is a deficient number, since it is larger than the sum of its proper divisors (405818).

428950 is a wasteful number, since it uses less digits than its factorization.

428950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 428950 is about 654.9427455893. The cubic root of 428950 is about 75.4169371431.

It can be divided in two parts, 428 and 950, that added together give a triangular number (1378 = T₅₂).

The spelling of 428950 in words is "four hundred twenty-eight thousand, nine hundred fifty".