1243950 has 24 divisors (see below), whose sum is σ = 3085368. Its totient is φ = 331680.

The previous prime is 1243943. The next prime is 1243951. The reversal of 1243950 is 593421.

It is a self number, because there is not a number n which added to its sum of digits gives 1243950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3997 + ... + 4296.

It is an arithmetic number, because the mean of its divisors is an integer number (128557).

2^1243950 is an apocalyptic number.

1243950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1243950 is an abundant number, since it is smaller than the sum of its proper divisors (1841418).

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

1243950 is a wasteful number, since it uses less digits than its factorization.

1243950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8308 (or 8303 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1243950 is about 1115.3250647233. The cubic root of 1243950 is about 107.5476622973.

It can be divided in two parts, 1 and 243950, that added together give a triangular number (243951 = T₆₉₈).

The spelling of 1243950 in words is "one million, two hundred forty-three thousand, nine hundred fifty".