423640355364 has 336 divisors, whose sum is σ = 1171820427120. Its totient is φ = 133772083200.

The previous prime is 423640355357. The next prime is 423640355387. The reversal of 423640355364 is 463553046324.

423640355364 is a `hidden beast` number, since 4 + 2 + 36 + 4 + 0 + 3 + 553 + 64 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 97418894400 + 326221460964 = 312120^2 + 571158^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 1648405924 + ... + 1648406180.

It is an arithmetic number, because the mean of its divisors is an integer number (3487560795).

Almost surely, 2^423640355364 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423640355364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (585910213560).

423640355364 is an abundant number, since it is smaller than the sum of its proper divisors (748180071756).

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

423640355364 is a wasteful number, since it uses less digits than its factorization.

423640355364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 45.

The spelling of 423640355364 in words is "four hundred twenty-three billion, six hundred forty million, three hundred fifty-five thousand, three hundred sixty-four".