420952403 has 2 divisors, whose sum is σ = 420952404. Its totient is φ = 420952402.

The previous prime is 420952381. The next prime is 420952421. The reversal of 420952403 is 304259024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420952403 - 2⁶ = 420952339 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (420952703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210476201 + 210476202.

It is an arithmetic number, because the mean of its divisors is an integer number (210476202).

Almost surely, 2^420952403 is an apocalyptic number.

420952403 is a deficient number, since it is larger than the sum of its proper divisors (1).

420952403 is an equidigital number, since it uses as much as digits as its factorization.

420952403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 420952403 is about 20517.1246279785. The cubic root of 420952403 is about 749.4528768239.

The spelling of 420952403 in words is "four hundred twenty million, nine hundred fifty-two thousand, four hundred three".