1490738 has 4 divisors (see below), whose sum is σ = 2236110. Its totient is φ = 745368.

The previous prime is 1490737. The next prime is 1490743. The reversal of 1490738 is 8370941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1247689 + 243049 = 1117^2 + 493^2 .

It is not an unprimeable number, because it can be changed into a prime (1490737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372683 + ... + 372686.

2^1490738 is an apocalyptic number.

1490738 is a deficient number, since it is larger than the sum of its proper divisors (745372).

1490738 is an equidigital number, since it uses as much as digits as its factorization.

1490738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745371.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1490738 is about 1220.9578207293. The cubic root of 1490738 is about 114.2353300229.

The spelling of 1490738 in words is "one million, four hundred ninety thousand, seven hundred thirty-eight".