2865542 has 16 divisors (see below), whose sum is σ = 4590960. Its totient is φ = 1337472.

The previous prime is 2865529. The next prime is 2865557. The reversal of 2865542 is 2455682.

It is a super-2 number, since 2×2865542² = 16422661907528, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁶ + 8⁶ + 6⁶ + 5⁸ + 5⁹ + 4⁷ + 2¹⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 2865499 and 2865508.

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, 2258 + ... + 3290.

It is an arithmetic number, because the mean of its divisors is an integer number (286935).

2^2865542 is an apocalyptic number.

2865542 is a deficient number, since it is larger than the sum of its proper divisors (1725418).

2865542 is a wasteful number, since it uses less digits than its factorization.

2865542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127.

The product of its digits is 19200, while the sum is 32.

The square root of 2865542 is about 1692.7911861774. The cubic root of 2865542 is about 142.0372513523.

The spelling of 2865542 in words is "two million, eight hundred sixty-five thousand, five hundred forty-two".