428302140 has 72 divisors (see below), whose sum is σ = 1395050832. Its totient is φ = 97896960.

The previous prime is 428302129. The next prime is 428302151. The reversal of 428302140 is 41203824.

It is an interprime number because it is at equal distance from previous prime (428302129) and next prime (428302151).

It is a self number, because there is not a number n which added to its sum of digits gives 428302140.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69901 + ... + 75780.

It is an arithmetic number, because the mean of its divisors is an integer number (19375706).

Almost surely, 2^428302140 is an apocalyptic number.

It is an amenable number.

428302140 is an abundant number, since it is smaller than the sum of its proper divisors (966748692).

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

428302140 is a wasteful number, since it uses less digits than its factorization.

428302140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145707 (or 145698 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 428302140 is about 20695.4618213752. The cubic root of 428302140 is about 753.7894962651.

Adding to 428302140 its reverse (41203824), we get a palindrome (469505964).

The spelling of 428302140 in words is "four hundred twenty-eight million, three hundred two thousand, one hundred forty".