1142850 has 48 divisors (see below), whose sum is σ = 2990880. Its totient is φ = 288000.

The previous prime is 1142837. The next prime is 1142851. The reversal of 1142850 is 582411.

It is a super-2 number, since 2×1142850² = 2612212245000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1142851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2650 + ... + 3050.

It is an arithmetic number, because the mean of its divisors is an integer number (62310).

2^1142850 is an apocalyptic number.

1142850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1495440).

1142850 is an abundant number, since it is smaller than the sum of its proper divisors (1848030).

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

1142850 is a wasteful number, since it uses less digits than its factorization.

1142850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1142850 is about 1069.0416268790. The cubic root of 1142850 is about 104.5513738987.

It can be divided in two parts, 114 and 2850, that multiplied together give a square (324900 = 570²).

The spelling of 1142850 in words is "one million, one hundred forty-two thousand, eight hundred fifty".