285334909242 has 32 divisors (see below), whose sum is σ = 604393503552. Its totient is φ = 89493890304.

The previous prime is 285334909213. The next prime is 285334909261. The reversal of 285334909242 is 242909433582.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43608 + ... + 756684.

It is an arithmetic number, because the mean of its divisors is an integer number (18887296986).

Almost surely, 2^285334909242 is an apocalyptic number.

285334909242 is an abundant number, since it is smaller than the sum of its proper divisors (319058594310).

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

285334909242 is a wasteful number, since it uses less digits than its factorization.

285334909242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717022.

The product of its (nonzero) digits is 3732480, while the sum is 51.

The spelling of 285334909242 in words is "two hundred eighty-five billion, three hundred thirty-four million, nine hundred nine thousand, two hundred forty-two".