1901204 has 6 divisors (see below), whose sum is σ = 3327114. Its totient is φ = 950600.

The previous prime is 1901201. The next prime is 1901209. The reversal of 1901204 is 4021091.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1817104 + 84100 = 1348^2 + 290^2 .

It is a super-2 number, since 2×1901204² = 7229153299232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1901201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 237647 + ... + 237654.

It is an arithmetic number, because the mean of its divisors is an integer number (554519).

2^1901204 is an apocalyptic number.

It is an amenable number.

1901204 is a deficient number, since it is larger than the sum of its proper divisors (1425910).

1901204 is a wasteful number, since it uses less digits than its factorization.

1901204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475305 (or 475303 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1901204 is about 1378.8415427452. The cubic root of 1901204 is about 123.8823893519.

Adding to 1901204 its reverse (4021091), we get a palindrome (5922295).

The spelling of 1901204 in words is "one million, nine hundred one thousand, two hundred four".