1985252 has 6 divisors (see below), whose sum is σ = 3474198. Its totient is φ = 992624.

The previous prime is 1985239. The next prime is 1985257. The reversal of 1985252 is 2525891.

It can be written as a sum of positive squares in only one way, i.e., 1094116 + 891136 = 1046^2 + 944^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1985257) by changing a digit.

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, 248153 + ... + 248160.

It is an arithmetic number, because the mean of its divisors is an integer number (579033).

2^1985252 is an apocalyptic number.

It is an amenable number.

1985252 is a deficient number, since it is larger than the sum of its proper divisors (1488946).

1985252 is a wasteful number, since it uses less digits than its factorization.

1985252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496317 (or 496315 counting only the distinct ones).

The product of its digits is 7200, while the sum is 32.

The square root of 1985252 is about 1408.9897089759. The cubic root of 1985252 is about 125.6816520470.

The spelling of 1985252 in words is "one million, nine hundred eighty-five thousand, two hundred fifty-two".