420250357 has 2 divisors, whose sum is σ = 420250358. Its totient is φ = 420250356.

The previous prime is 420250351. The next prime is 420250367. The reversal of 420250357 is 753052024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 416404836 + 3845521 = 20406^2 + 1961^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420250357 is a prime.

It is a super-2 number, since 2×420250357² = 353220725117254898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420250351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210125178 + 210125179.

It is an arithmetic number, because the mean of its divisors is an integer number (210125179).

Almost surely, 2^420250357 is an apocalyptic number.

It is an amenable number.

420250357 is a deficient number, since it is larger than the sum of its proper divisors (1).

420250357 is an equidigital number, since it uses as much as digits as its factorization.

420250357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 28.

The square root of 420250357 is about 20500.0087073152. The cubic root of 420250357 is about 749.0360100880.

The spelling of 420250357 in words is "four hundred twenty million, two hundred fifty thousand, three hundred fifty-seven".