420757253 has 8 divisors (see below), whose sum is σ = 488043072. Its totient is φ = 355265856.

The previous prime is 420757247. The next prime is 420757283. The reversal of 420757253 is 352757024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420757253 - 2⁴ = 420757237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420757283) 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 in 7 ways as a sum of consecutive naturals, for example, 448100 + ... + 449037.

It is an arithmetic number, because the mean of its divisors is an integer number (61005384).

Almost surely, 2^420757253 is an apocalyptic number.

It is an amenable number.

420757253 is a deficient number, since it is larger than the sum of its proper divisors (67285819).

420757253 is an equidigital number, since it uses as much as digits as its factorization.

420757253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897211.

The product of its (nonzero) digits is 58800, while the sum is 35.

The square root of 420757253 is about 20512.3682933005. The cubic root of 420757253 is about 749.3370455686.

The spelling of 420757253 in words is "four hundred twenty million, seven hundred fifty-seven thousand, two hundred fifty-three".