1895220 has 36 divisors (see below), whose sum is σ = 5749380. Its totient is φ = 505344.

The previous prime is 1895219. The next prime is 1895233. The reversal of 1895220 is 225981.

It can be written as a sum of positive squares in 2 ways, for example, as 1127844 + 767376 = 1062^2 + 876^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5085 + ... + 5444.

It is an arithmetic number, because the mean of its divisors is an integer number (159705).

2^1895220 is an apocalyptic number.

1895220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1895220 is an abundant number, since it is smaller than the sum of its proper divisors (3854160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1895220 is a wasteful number, since it uses less digits than its factorization.

1895220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10544 (or 10539 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1895220 is about 1376.6698950729. The cubic root of 1895220 is about 123.7522803375.

The spelling of 1895220 in words is "one million, eight hundred ninety-five thousand, two hundred twenty".