420887958 has 8 divisors (see below), whose sum is σ = 841775928. Its totient is φ = 140295984.

The previous prime is 420887923. The next prime is 420887959. The reversal of 420887958 is 859788024.

It is a happy number.

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

420887958 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 420887958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420887959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35073991 + ... + 35074002.

It is an arithmetic number, because the mean of its divisors is an integer number (105221991).

Almost surely, 2^420887958 is an apocalyptic number.

420887958 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

420887958 is a wasteful number, since it uses less digits than its factorization.

420887958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70147998.

The product of its (nonzero) digits is 1290240, while the sum is 51.

The square root of 420887958 is about 20515.5540505247. The cubic root of 420887958 is about 749.4146294629.

The spelling of 420887958 in words is "four hundred twenty million, eight hundred eighty-seven thousand, nine hundred fifty-eight".