420202037 has 2 divisors, whose sum is σ = 420202038. Its totient is φ = 420202036.

The previous prime is 420202021. The next prime is 420202049. The reversal of 420202037 is 730202024.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 334194961 + 86007076 = 18281^2 + 9274^2 .

It is a cyclic number.

It is not a de Polignac number, because 420202037 - 2⁴ = 420202021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420202337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210101018 + 210101019.

It is an arithmetic number, because the mean of its divisors is an integer number (210101019).

Almost surely, 2^420202037 is an apocalyptic number.

It is an amenable number.

420202037 is a deficient number, since it is larger than the sum of its proper divisors (1).

420202037 is an equidigital number, since it uses as much as digits as its factorization.

420202037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 420202037 is about 20498.8301373517. The cubic root of 420202037 is about 749.0073011636.

The spelling of 420202037 in words is "four hundred twenty million, two hundred two thousand, thirty-seven".