1870222 has 16 divisors (see below), whose sum is σ = 2962080. Its totient is φ = 883872.

The previous prime is 1870213. The next prime is 1870223. The reversal of 1870222 is 2220781.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1870193 and 1870202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1870223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4828 + ... + 5200.

It is an arithmetic number, because the mean of its divisors is an integer number (185130).

2^1870222 is an apocalyptic number.

1870222 is a deficient number, since it is larger than the sum of its proper divisors (1091858).

1870222 is a wasteful number, since it uses less digits than its factorization.

1870222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 1870222 is about 1367.5606019479. The cubic root of 1870222 is about 123.2057718525.

The spelling of 1870222 in words is "one million, eight hundred seventy thousand, two hundred twenty-two".