1290406 has 16 divisors (see below), whose sum is σ = 2153088. Its totient is φ = 576000.

The previous prime is 1290379. The next prime is 1290427. The reversal of 1290406 is 6040921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6 + ... + 1606.

It is an arithmetic number, because the mean of its divisors is an integer number (134568).

2^1290406 is an apocalyptic number.

1290406 is a deficient number, since it is larger than the sum of its proper divisors (862682).

1290406 is a wasteful number, since it uses less digits than its factorization.

1290406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1647.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1290406 is about 1135.9603866333. The cubic root of 1290406 is about 108.8701424682.

The spelling of 1290406 in words is "one million, two hundred ninety thousand, four hundred six".