1434401021 has 2 divisors, whose sum is σ = 1434401022. Its totient is φ = 1434401020.

The previous prime is 1434400973. The next prime is 1434401081. The reversal of 1434401021 is 1201044341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 915062500 + 519338521 = 30250^2 + 22789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1434401021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1434400984 and 1434401002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1434401081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 717200510 + 717200511.

It is an arithmetic number, because the mean of its divisors is an integer number (717200511).

Almost surely, 2^1434401021 is an apocalyptic number.

It is an amenable number.

1434401021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1434401021 is an equidigital number, since it uses as much as digits as its factorization.

1434401021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1434401021 is about 37873.4870456894. The cubic root of 1434401021 is about 1127.7777667442. Note that the first 4 decimals are identical.

Adding to 1434401021 its reverse (1201044341), we get a palindrome (2635445362).

The spelling of 1434401021 in words is "one billion, four hundred thirty-four million, four hundred one thousand, twenty-one".