435142728 has 24 divisors (see below), whose sum is σ = 1178511750. Its totient is φ = 145047552.

The previous prime is 435142711. The next prime is 435142733. The reversal of 435142728 is 827241534.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 304223364 + 130919364 = 17442^2 + 11442^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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 = 435142692 and 435142701.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3021753 + ... + 3021896.

Almost surely, 2^435142728 is an apocalyptic number.

It is an amenable number.

435142728 is an abundant number, since it is smaller than the sum of its proper divisors (743369022).

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

435142728 is a wasteful number, since it uses less digits than its factorization.

435142728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6043661 (or 6043654 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 435142728 is about 20860.0749758959. The cubic root of 435142728 is about 757.7813456761.

The spelling of 435142728 in words is "four hundred thirty-five million, one hundred forty-two thousand, seven hundred twenty-eight".