428400151 has 4 divisors (see below), whose sum is σ = 443172600. Its totient is φ = 413627704.

The previous prime is 428400143. The next prime is 428400197. The reversal of 428400151 is 151004824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 428400151 - 2³ = 428400143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428400131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7386181 + ... + 7386238.

It is an arithmetic number, because the mean of its divisors is an integer number (110793150).

Almost surely, 2^428400151 is an apocalyptic number.

428400151 is a deficient number, since it is larger than the sum of its proper divisors (14772449).

428400151 is a wasteful number, since it uses less digits than its factorization.

428400151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14772448.

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 428400151 is about 20697.8296205182. The cubic root of 428400151 is about 753.8469899677.

Adding to 428400151 its reverse (151004824), we get a palindrome (579404975).

The spelling of 428400151 in words is "four hundred twenty-eight million, four hundred thousand, one hundred fifty-one".