420598770 has 64 divisors (see below), whose sum is σ = 1035265536. Its totient is φ = 109310720.

The previous prime is 420598733. The next prime is 420598807. The reversal of 420598770 is 77895024.

It is an interprime number because it is at equal distance from previous prime (420598733) and next prime (420598807).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 446500 + ... + 447440.

It is an arithmetic number, because the mean of its divisors is an integer number (16176024).

Almost surely, 2^420598770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420598770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (517632768).

420598770 is an abundant number, since it is smaller than the sum of its proper divisors (614666766).

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

420598770 is a wasteful number, since it uses less digits than its factorization.

420598770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 420598770 is about 20508.5048211711. The cubic root of 420598770 is about 749.2429516497.

The spelling of 420598770 in words is "four hundred twenty million, five hundred ninety-eight thousand, seven hundred seventy".