420253043 has 16 divisors (see below), whose sum is σ = 488790720. Its totient is φ = 353880576.

The previous prime is 420252997. The next prime is 420253049. The reversal of 420253043 is 340352024.

It is not a de Polignac number, because 420253043 - 2⁸ = 420252787 is a prime.

It is a super-2 number, since 2×420253043² = 353225240301519698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420253049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140063 + ... + 143031.

It is an arithmetic number, because the mean of its divisors is an integer number (30549420).

Almost surely, 2^420253043 is an apocalyptic number.

420253043 is a deficient number, since it is larger than the sum of its proper divisors (68537677).

420253043 is a wasteful number, since it uses less digits than its factorization.

420253043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 420253043 is about 20500.0742193778. The cubic root of 420253043 is about 749.0376058879.

The spelling of 420253043 in words is "four hundred twenty million, two hundred fifty-three thousand, forty-three".