1930429 has 2 divisors, whose sum is σ = 1930430. Its totient is φ = 1930428.

The previous prime is 1930427. The next prime is 1930433. The reversal of 1930429 is 9240391.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1695204 + 235225 = 1302^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 1930429 - 2¹ = 1930427 is a prime.

It is a super-2 number, since 2×1930429² = 7453112248082, which contains 22 as substring.

Together with 1930427, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1930397 and 1930406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1930427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965214 + 965215.

It is an arithmetic number, because the mean of its divisors is an integer number (965215).

2^1930429 is an apocalyptic number.

It is an amenable number.

1930429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1930429 is an equidigital number, since it uses as much as digits as its factorization.

1930429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1930429 is about 1389.3987908444. The cubic root of 1930429 is about 124.5139310121.

The spelling of 1930429 in words is "one million, nine hundred thirty thousand, four hundred twenty-nine".