1142450 has 24 divisors (see below), whose sum is σ = 2160948. Its totient is φ = 449280.

The previous prime is 1142431. The next prime is 1142473. The reversal of 1142450 is 542411.

It can be written as a sum of positive squares in 6 ways, for example, as 116281 + 1026169 = 341^2 + 1013^2 .

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 in 11 ways as a sum of consecutive naturals, for example, 3494 + ... + 3806.

2^1142450 is an apocalyptic number.

1142450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1142450 is a deficient number, since it is larger than the sum of its proper divisors (1018498).

1142450 is a wasteful number, since it uses less digits than its factorization.

1142450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1142450 is about 1068.8545270522. The cubic root of 1142450 is about 104.5391747388.

Adding to 1142450 its reverse (542411), we get a palindrome (1684861).

The spelling of 1142450 in words is "one million, one hundred forty-two thousand, four hundred fifty".