1290466 has 4 divisors (see below), whose sum is σ = 1935702. Its totient is φ = 645232.

The previous prime is 1290463. The next prime is 1290467. The reversal of 1290466 is 6640921.

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., 848241 + 442225 = 921^2 + 665^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 322615 + ... + 322618.

2^1290466 is an apocalyptic number.

1290466 is a deficient number, since it is larger than the sum of its proper divisors (645236).

1290466 is an equidigital number, since it uses as much as digits as its factorization.

1290466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645235.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1290466 is about 1135.9867956979. The cubic root of 1290466 is about 108.8718298202.

The spelling of 1290466 in words is "one million, two hundred ninety thousand, four hundred sixty-six".