1442090 has 16 divisors (see below), whose sum is σ = 2795688. Its totient is φ = 532416.

The previous prime is 1442087. The next prime is 1442143. The reversal of 1442090 is 902441.

It can be written as a sum of positive squares in 4 ways, for example, as 1138489 + 303601 = 1067^2 + 551^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5417 + ... + 5676.

2^1442090 is an apocalyptic number.

1442090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1442090 is a deficient number, since it is larger than the sum of its proper divisors (1353598).

1442090 is a wasteful number, since it uses less digits than its factorization.

1442090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11113.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1442090 is about 1200.8705175830. The cubic root of 1442090 is about 112.9789294255.

The spelling of 1442090 in words is "one million, four hundred forty-two thousand, ninety".