1922429 has 2 divisors, whose sum is σ = 1922430. Its totient is φ = 1922428.

The previous prime is 1922423. The next prime is 1922447. The reversal of 1922429 is 9242291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1464100 + 458329 = 1210^2 + 677^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1922429 is a prime.

It is equal to p₁₄₃₅₇₉ and since 1922429 and 143579 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1922423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 961214 + 961215.

It is an arithmetic number, because the mean of its divisors is an integer number (961215).

2^1922429 is an apocalyptic number.

It is an amenable number.

1922429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1922429 is an equidigital number, since it uses as much as digits as its factorization.

1922429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 29.

The square root of 1922429 is about 1386.5168588950. The cubic root of 1922429 is about 124.3416911216.

The spelling of 1922429 in words is "one million, nine hundred twenty-two thousand, four hundred twenty-nine".