285001048 has 8 divisors (see below), whose sum is σ = 534376980. Its totient is φ = 142500520.

The previous prime is 285001043. The next prime is 285001061. The reversal of 285001048 is 840100582.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×285001048² = 162451194722196608, which contains 22 as substring.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285001043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17812558 + ... + 17812573.

Almost surely, 2^285001048 is an apocalyptic number.

It is an amenable number.

285001048 is a deficient number, since it is larger than the sum of its proper divisors (249375932).

285001048 is a wasteful number, since it uses less digits than its factorization.

285001048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35625137 (or 35625133 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 285001048 is about 16881.9740551868. The cubic root of 285001048 is about 658.0852431576.

The spelling of 285001048 in words is "two hundred eighty-five million, one thousand, forty-eight".