285332734 has 4 divisors (see below), whose sum is σ = 427999104. Its totient is φ = 142666366.

The previous prime is 285332731. The next prime is 285332759. The reversal of 285332734 is 437233582.

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

It is a junction number, because it is equal to n+sod(n) for n = 285332693 and 285332702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285332731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71333182 + ... + 71333185.

It is an arithmetic number, because the mean of its divisors is an integer number (106999776).

Almost surely, 2^285332734 is an apocalyptic number.

285332734 is a deficient number, since it is larger than the sum of its proper divisors (142666370).

285332734 is a wasteful number, since it uses less digits than its factorization.

285332734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142666369.

The product of its digits is 120960, while the sum is 37.

The square root of 285332734 is about 16891.7948720673. The cubic root of 285332734 is about 658.3404387561.

The spelling of 285332734 in words is "two hundred eighty-five million, three hundred thirty-two thousand, seven hundred thirty-four".