1420434401 has 2 divisors, whose sum is σ = 1420434402. Its totient is φ = 1420434400.

The previous prime is 1420434383. The next prime is 1420434409. The reversal of 1420434401 is 1044340241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 857084176 + 563350225 = 29276^2 + 23735^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1420434401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1420434409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710217200 + 710217201.

It is an arithmetic number, because the mean of its divisors is an integer number (710217201).

Almost surely, 2^1420434401 is an apocalyptic number.

It is an amenable number.

1420434401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1420434401 is an equidigital number, since it uses as much as digits as its factorization.

1420434401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1420434401 is about 37688.6508248836. The cubic root of 1420434401 is about 1124.1054685989.

Adding to 1420434401 its reverse (1044340241), we get a palindrome (2464774642).

The spelling of 1420434401 in words is "one billion, four hundred twenty million, four hundred thirty-four thousand, four hundred one".