1022429 has 2 divisors, whose sum is σ = 1022430. Its totient is φ = 1022428.

The previous prime is 1022389. The next prime is 1022443. The reversal of 1022429 is 9242201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 931225 + 91204 = 965^2 + 302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1022429 is a prime.

It is a super-2 number, since 2×1022429² = 2090722120082, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1022429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511214 + 511215.

It is an arithmetic number, because the mean of its divisors is an integer number (511215).

2^1022429 is an apocalyptic number.

It is an amenable number.

1022429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022429 is an equidigital number, since it uses as much as digits as its factorization.

1022429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1022429 is about 1011.1523129578. The cubic root of 1022429 is about 100.7421124017.

The spelling of 1022429 in words is "one million, twenty-two thousand, four hundred twenty-nine".