4009285 has 16 divisors (see below), whose sum is σ = 5788800. Its totient is φ = 2604096.

The previous prime is 4009249. The next prime is 4009307. The reversal of 4009285 is 5829004.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4009285 - 2¹⁹ = 3484997 is a prime.

It is a super-2 number, since 2×4009285² = 32148732422450, 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 15 ways as a sum of consecutive naturals, for example, 2350 + ... + 3679.

It is an arithmetic number, because the mean of its divisors is an integer number (361800).

Almost surely, 2^4009285 is an apocalyptic number.

It is an amenable number.

4009285 is a deficient number, since it is larger than the sum of its proper divisors (1779515).

4009285 is a wasteful number, since it uses less digits than its factorization.

4009285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 4009285 is about 2002.3199045108. The cubic root of 4009285 is about 158.8628354396.

The spelling of 4009285 in words is "four million, nine thousand, two hundred eighty-five".