1296690 has 16 divisors (see below), whose sum is σ = 3112128. Its totient is φ = 345776.

The previous prime is 1296689. The next prime is 1296703. The reversal of 1296690 is 966921.

It is a happy number.

It is a super-2 number, since 2×1296690² = 3362809912200, which contains 22 as substring.

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, 21582 + ... + 21641.

It is an arithmetic number, because the mean of its divisors is an integer number (194508).

2^1296690 is an apocalyptic number.

1296690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1296690 is an abundant number, since it is smaller than the sum of its proper divisors (1815438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1296690 is a wasteful number, since it uses less digits than its factorization.

1296690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43233.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 1296690 is about 1138.7229689437. The cubic root of 1296690 is about 109.0465811064.

The spelling of 1296690 in words is "one million, two hundred ninety-six thousand, six hundred ninety".