423753564 has 96 divisors (see below), whose sum is σ = 1124444160. Its totient is φ = 123222528.

The previous prime is 423753559. The next prime is 423753613. The reversal of 423753564 is 465357324.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 318669 + ... + 319995.

It is an arithmetic number, because the mean of its divisors is an integer number (11712960).

Almost surely, 2^423753564 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 423753564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562222080).

423753564 is an abundant number, since it is smaller than the sum of its proper divisors (700690596).

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

423753564 is a wasteful number, since it uses less digits than its factorization.

423753564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459 (or 1457 counting only the distinct ones).

The product of its digits is 302400, while the sum is 39.

The square root of 423753564 is about 20585.2754171519. The cubic root of 423753564 is about 751.1115748324. Note that the first 3 decimals are identical.

The spelling of 423753564 in words is "four hundred twenty-three million, seven hundred fifty-three thousand, five hundred sixty-four".