1428570144 has 36 divisors (see below), whose sum is σ = 4062497166. Its totient is φ = 476189952.

The previous prime is 1428570113. The next prime is 1428570149. The reversal of 1428570144 is 4410758241.

It is a happy number.

1428570144 is a `hidden beast` number, since 1 + 42 + 8 + 570 + 1 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 732243600 + 696326544 = 27060^2 + 26388^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1428570099 and 1428570108.

It is not an unprimeable number, because it can be changed into a prime (1428570149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2479869 + ... + 2480444.

Almost surely, 2^1428570144 is an apocalyptic number.

It is an amenable number.

1428570144 is an abundant number, since it is smaller than the sum of its proper divisors (2633927022).

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

1428570144 is a wasteful number, since it uses less digits than its factorization.

1428570144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4960329 (or 4960318 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 1428570144 is about 37796.4303076362. The cubic root of 1428570144 is about 1126.2475428695.

The spelling of 1428570144 in words is "one billion, four hundred twenty-eight million, five hundred seventy thousand, one hundred forty-four".