1442990 has 8 divisors (see below), whose sum is σ = 2597400. Its totient is φ = 577192.

The previous prime is 1442989. The next prime is 1443007. The reversal of 1442990 is 992441.

1442990 is nontrivially palindromic in base 9.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72140 + ... + 72159.

It is an arithmetic number, because the mean of its divisors is an integer number (324675).

2^1442990 is an apocalyptic number.

1442990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1442990 is a deficient number, since it is larger than the sum of its proper divisors (1154410).

1442990 is a wasteful number, since it uses less digits than its factorization.

1442990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144306.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1442990 is about 1201.2451872952. The cubic root of 1442990 is about 113.0024277026.

The spelling of 1442990 in words is "one million, four hundred forty-two thousand, nine hundred ninety".