420320233146 has 128 divisors (see below), whose sum is σ = 977013964800. Its totient is φ = 119211687360.

The previous prime is 420320233121. The next prime is 420320233171. The reversal of 420320233146 is 641332023024.

It is an interprime number because it is at equal distance from previous prime (420320233121) and next prime (420320233171).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 51386085 + ... + 51394263.

It is an arithmetic number, because the mean of its divisors is an integer number (7632921600).

Almost surely, 2^420320233146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420320233146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488506982400).

420320233146 is an abundant number, since it is smaller than the sum of its proper divisors (556693731654).

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

420320233146 is a wasteful number, since it uses less digits than its factorization.

420320233146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8704.

The product of its (nonzero) digits is 20736, while the sum is 30.

The spelling of 420320233146 in words is "four hundred twenty billion, three hundred twenty million, two hundred thirty-three thousand, one hundred forty-six".