420548245 has 16 divisors (see below), whose sum is σ = 555045120. Its totient is φ = 303948864.

The previous prime is 420548231. The next prime is 420548273. The reversal of 420548245 is 542845024.

It is a cyclic number.

It is not a de Polignac number, because 420548245 - 2²³ = 412159637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420548245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65775 + ... + 71884.

It is an arithmetic number, because the mean of its divisors is an integer number (34690320).

Almost surely, 2^420548245 is an apocalyptic number.

It is an amenable number.

420548245 is a deficient number, since it is larger than the sum of its proper divisors (134496875).

420548245 is a wasteful number, since it uses less digits than its factorization.

420548245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137724.

The product of its (nonzero) digits is 51200, while the sum is 34.

The square root of 420548245 is about 20507.2729781412. The cubic root of 420548245 is about 749.2129491717.

The spelling of 420548245 in words is "four hundred twenty million, five hundred forty-eight thousand, two hundred forty-five".