1865049 has 16 divisors (see below), whose sum is σ = 2600640. Its totient is φ = 1187840.

The previous prime is 1865027. The next prime is 1865057. The reversal of 1865049 is 9405681.

It is a cyclic number.

It is not a de Polignac number, because 1865049 - 2⁷ = 1864921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1865069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7129 + ... + 7385.

It is an arithmetic number, because the mean of its divisors is an integer number (162540).

2^1865049 is an apocalyptic number.

It is an amenable number.

1865049 is a deficient number, since it is larger than the sum of its proper divisors (735591).

1865049 is a wasteful number, since it uses less digits than its factorization.

1865049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1865049 is about 1365.6679684316. The cubic root of 1865049 is about 123.0920719835.

The spelling of 1865049 in words is "one million, eight hundred sixty-five thousand, forty-nine".