4565423940 has 384 divisors, whose sum is σ = 16647192576. Its totient is φ = 907200000.

The previous prime is 4565423927. The next prime is 4565423957. The reversal of 4565423940 is 493245654.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 4565423892 and 4565423901.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 18188815 + ... + 18189065.

It is an arithmetic number, because the mean of its divisors is an integer number (43352064).

Almost surely, 2^4565423940 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 4565423940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8323596288).

4565423940 is an abundant number, since it is smaller than the sum of its proper divisors (12081768636).

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

4565423940 is a wasteful number, since it uses less digits than its factorization.

4565423940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The square root of 4565423940 is about 67567.9209388597. The cubic root of 4565423940 is about 1658.9260896462.

The spelling of 4565423940 in words is "four billion, five hundred sixty-five million, four hundred twenty-three thousand, nine hundred forty".