285240602 has 4 divisors (see below), whose sum is σ = 427860906. Its totient is φ = 142620300.

The previous prime is 285240601. The next prime is 285240619. The reversal of 285240602 is 206042582.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 206042582 = 2 ⋅103021291.

It can be written as a sum of positive squares in only one way, i.e., 284630641 + 609961 = 16871^2 + 781^2 .

It is not an unprimeable number, because it can be changed into a prime (285240601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71310149 + ... + 71310152.

Almost surely, 2^285240602 is an apocalyptic number.

285240602 is a deficient number, since it is larger than the sum of its proper divisors (142620304).

285240602 is a wasteful number, since it uses less digits than its factorization.

285240602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142620303.

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 285240602 is about 16889.0675290260. The cubic root of 285240602 is about 658.2695732442.

The spelling of 285240602 in words is "two hundred eighty-five million, two hundred forty thousand, six hundred two".