1490842 has 8 divisors (see below), whose sum is σ = 2290932. Its totient is φ = 727200.

The previous prime is 1490833. The next prime is 1490843. The reversal of 1490842 is 2480941.

It is a Cunningham number, because it is equal to 1221²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 1490841 + 1 = 1221^2 + 1^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1490842.

It is not an unprimeable number, because it can be changed into a prime (1490843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9009 + ... + 9172.

2^1490842 is an apocalyptic number.

1490842 is a deficient number, since it is larger than the sum of its proper divisors (800090).

1490842 is a wasteful number, since it uses less digits than its factorization.

1490842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18224.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1490842 is about 1221.0004095003. Note that the first 3 decimals coincide. The cubic root of 1490842 is about 114.2379864696.

Subtracting 1490842 from its reverse (2480941), we obtain a palindrome (990099).

It can be divided in two parts, 1490 and 842, that added together give a palindrome (2332).

The spelling of 1490842 in words is "one million, four hundred ninety thousand, eight hundred forty-two".