285386942 has 16 divisors (see below), whose sum is σ = 430887600. Its totient is φ = 141761280.

The previous prime is 285386929. The next prime is 285386963. The reversal of 285386942 is 249683582.

It is a super-2 number, since 2×285386942² = 162891413328222728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306734 + ... + 307662.

It is an arithmetic number, because the mean of its divisors is an integer number (26930475).

Almost surely, 2^285386942 is an apocalyptic number.

285386942 is a deficient number, since it is larger than the sum of its proper divisors (145500658).

285386942 is a wasteful number, since it uses less digits than its factorization.

285386942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771.

The product of its digits is 829440, while the sum is 47.

The square root of 285386942 is about 16893.3993618810. The cubic root of 285386942 is about 658.3821269964.

The spelling of 285386942 in words is "two hundred eighty-five million, three hundred eighty-six thousand, nine hundred forty-two".