1290429 has 12 divisors (see below), whose sum is σ = 2130336. Its totient is φ = 737352.

The previous prime is 1290427. The next prime is 1290431. The reversal of 1290429 is 9240921.

It is an interprime number because it is at equal distance from previous prime (1290427) and next prime (1290431).

It is not a de Polignac number, because 1290429 - 2¹ = 1290427 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1290427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10179 + ... + 10304.

It is an arithmetic number, because the mean of its divisors is an integer number (177528).

2^1290429 is an apocalyptic number.

It is an amenable number.

1290429 is a deficient number, since it is larger than the sum of its proper divisors (839907).

1290429 is a wasteful number, since it uses less digits than its factorization.

1290429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20496 (or 20493 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1290429 is about 1135.9705101806. The cubic root of 1290429 is about 108.8707892927.

The spelling of 1290429 in words is "one million, two hundred ninety thousand, four hundred twenty-nine".