420001299 has 12 divisors (see below), whose sum is σ = 626238912. Its totient is φ = 270968400.

The previous prime is 420001297. The next prime is 420001381. The reversal of 420001299 is 992100024.

It is not a de Polignac number, because 420001299 - 2¹ = 420001297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420001291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 752412 + ... + 752969.

It is an arithmetic number, because the mean of its divisors is an integer number (52186576).

Almost surely, 2^420001299 is an apocalyptic number.

420001299 is a deficient number, since it is larger than the sum of its proper divisors (206237613).

420001299 is a wasteful number, since it uses less digits than its factorization.

420001299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1505418 (or 1505415 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 420001299 is about 20493.9332242496. The cubic root of 420001299 is about 748.8880107881. Note that the first 3 decimals are identical.

The spelling of 420001299 in words is "four hundred twenty million, one thousand, two hundred ninety-nine".