1881652 has 6 divisors (see below), whose sum is σ = 3292898. Its totient is φ = 940824.

The previous prime is 1881641. The next prime is 1881697. The reversal of 1881652 is 2561881.

It can be written as a sum of positive squares in only one way, i.e., 1572516 + 309136 = 1254^2 + 556^2 .

It is a super-2 number, since 2×1881652² = 7081228498208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 235203 + ... + 235210.

2^1881652 is an apocalyptic number.

It is an amenable number.

1881652 is a deficient number, since it is larger than the sum of its proper divisors (1411246).

1881652 is a wasteful number, since it uses less digits than its factorization.

1881652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470417 (or 470415 counting only the distinct ones).

The product of its digits is 3840, while the sum is 31.

The square root of 1881652 is about 1371.7332102125. The cubic root of 1881652 is about 123.4562559867.

The spelling of 1881652 in words is "one million, eight hundred eighty-one thousand, six hundred fifty-two".