420875658 has 48 divisors (see below), whose sum is σ = 1066418496. Its totient is φ = 117452160.

The previous prime is 420875657. The next prime is 420875659. The reversal of 420875658 is 856578024.

420875658 is a `hidden beast` number, since 4 + 2 + 0 + 87 + 565 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (420875657) and next prime (420875659).

It is not an unprimeable number, because it can be changed into a prime (420875657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33423 + ... + 44258.

It is an arithmetic number, because the mean of its divisors is an integer number (22217052).

Almost surely, 2^420875658 is an apocalyptic number.

420875658 is an abundant number, since it is smaller than the sum of its proper divisors (645542838).

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

420875658 is a wasteful number, since it uses less digits than its factorization.

420875658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77739 (or 77736 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 420875658 is about 20515.2542757822. The cubic root of 420875658 is about 749.4073291117.

The spelling of 420875658 in words is "four hundred twenty million, eight hundred seventy-five thousand, six hundred fifty-eight".