428242950 has 120 divisors (see below), whose sum is σ = 1219375080. Its totient is φ = 111369600.

The previous prime is 428242949. The next prime is 428242951. The reversal of 428242950 is 59242824.

It is an interprime number because it is at equal distance from previous prime (428242949) and next prime (428242951).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428242951) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 164761 + ... + 167339.

It is an arithmetic number, because the mean of its divisors is an integer number (10161459).

Almost surely, 2^428242950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 428242950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (609687540).

428242950 is an abundant number, since it is smaller than the sum of its proper divisors (791132130).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428242950 is a wasteful number, since it uses less digits than its factorization.

428242950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644 (or 2630 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 428242950 is about 20694.0317483085. The cubic root of 428242950 is about 753.7547708913.

The spelling of 428242950 in words is "four hundred twenty-eight million, two hundred forty-two thousand, nine hundred fifty".