420250212 has 18 divisors (see below), whose sum is σ = 1062299238. Its totient is φ = 140083392.

The previous prime is 420250211. The next prime is 420250219. The reversal of 420250212 is 212052024.

It can be written as a sum of positive squares in only one way, i.e., 405458496 + 14791716 = 20136^2 + 3846^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×420250212² = 353220481372089888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (420250211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5836773 + ... + 5836844.

Almost surely, 2^420250212 is an apocalyptic number.

It is an amenable number.

420250212 is an abundant number, since it is smaller than the sum of its proper divisors (642049026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420250212 is a wasteful number, since it uses less digits than its factorization.

420250212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11673627 (or 11673622 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 420250212 is about 20500.0051707311. The cubic root of 420250212 is about 749.0359239408.

The spelling of 420250212 in words is "four hundred twenty million, two hundred fifty thousand, two hundred twelve".