1966250 has 60 divisors (see below), whose sum is σ = 4362666. Its totient is φ = 660000.

The previous prime is 1966241. The next prime is 1966259. The reversal of 1966250 is 526691.

It is an interprime number because it is at equal distance from previous prime (1966241) and next prime (1966259).

It can be written as a sum of positive squares in 5 ways, for example, as 14641 + 1951609 = 121^2 + 1397^2 .

It is a super-2 number, since 2×1966250² = 7732278125000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1966259) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 151244 + ... + 151256.

2^1966250 is an apocalyptic number.

1966250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1966250 is an abundant number, since it is smaller than the sum of its proper divisors (2396416).

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

1966250 is a wasteful number, since it uses less digits than its factorization.

1966250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57 (or 31 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1966250 is about 1402.2303662380. The cubic root of 1966250 is about 125.2793751311.

It can be divided in two parts, 196 and 6250, that added together give a palindrome (6446).

The spelling of 1966250 in words is "one million, nine hundred sixty-six thousand, two hundred fifty".