1860945 has 16 divisors (see below), whose sum is σ = 3010560. Its totient is φ = 981504.

The previous prime is 1860941. The next prime is 1860967. The reversal of 1860945 is 5490681.

It is not a de Polignac number, because 1860945 - 2² = 1860941 is a prime.

1860945 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1860941) 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, 816 + ... + 2094.

It is an arithmetic number, because the mean of its divisors is an integer number (188160).

2^1860945 is an apocalyptic number.

1860945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1860945 is a deficient number, since it is larger than the sum of its proper divisors (1149615).

1860945 is a wasteful number, since it uses less digits than its factorization.

1860945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384.

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

The square root of 1860945 is about 1364.1645795138. The cubic root of 1860945 is about 123.0017185298.

The spelling of 1860945 in words is "one million, eight hundred sixty thousand, nine hundred forty-five".