423620305920 has 1056 divisors, whose sum is σ = 1757930323968. Its totient is φ = 95814254592.

The previous prime is 423620305907. The next prime is 423620305931. The reversal of 423620305920 is 29503026324.

It is a happy number.

423620305920 is a `hidden beast` number, since 4 + 2 + 3 + 62 + 0 + 3 + 0 + 592 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1106058049 + ... + 1106058431.

Almost surely, 2^423620305920 is an apocalyptic number.

423620305920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423620305920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (878965161984).

423620305920 is an abundant number, since it is smaller than the sum of its proper divisors (1334310018048).

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

423620305920 is a wasteful number, since it uses less digits than its factorization.

423620305920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557 (or 527 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The spelling of 423620305920 in words is "four hundred twenty-three billion, six hundred twenty million, three hundred five thousand, nine hundred twenty".