1490438 has 8 divisors (see below), whose sum is σ = 2245320. Its totient is φ = 742000.

The previous prime is 1490429. The next prime is 1490443. The reversal of 1490438 is 8340941.

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 1490438.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 983 + ... + 1986.

It is an arithmetic number, because the mean of its divisors is an integer number (280665).

2^1490438 is an apocalyptic number.

1490438 is a deficient number, since it is larger than the sum of its proper divisors (754882).

1490438 is a wasteful number, since it uses less digits than its factorization.

1490438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3222.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 1490438 is about 1220.8349601809. The cubic root of 1490438 is about 114.2276665036.

The spelling of 1490438 in words is "one million, four hundred ninety thousand, four hundred thirty-eight".