1900212 has 12 divisors (see below), whose sum is σ = 4433856. Its totient is φ = 633400.

The previous prime is 1900201. The next prime is 1900219. The reversal of 1900212 is 2120091.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1900212² = 7221611289888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1900191 and 1900200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1900219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79164 + ... + 79187.

It is an arithmetic number, because the mean of its divisors is an integer number (369488).

2^1900212 is an apocalyptic number.

1900212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1900212 is an abundant number, since it is smaller than the sum of its proper divisors (2533644).

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

1900212 is a wasteful number, since it uses less digits than its factorization.

1900212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158358 (or 158356 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1900212 is about 1378.4817735465. The cubic root of 1900212 is about 123.8608393744.

It can be divided in two parts, 1900 and 212, that added together give a palindrome (2112).

The spelling of 1900212 in words is "one million, nine hundred thousand, two hundred twelve".