465978366 has 128 divisors (see below), whose sum is σ = 1227985920. Its totient is φ = 128217600.

The previous prime is 465978361. The next prime is 465978427. The reversal of 465978366 is 663879564.

465978366 is a `hidden beast` number, since 46 + 597 + 8 + 3 + 6 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (465978361) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1658146 + ... + 1658426.

It is an arithmetic number, because the mean of its divisors is an integer number (9593640).

Almost surely, 2^465978366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 465978366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (613992960).

465978366 is an abundant number, since it is smaller than the sum of its proper divisors (762007554).

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

465978366 is a wasteful number, since it uses less digits than its factorization.

465978366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 441 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 54.

The square root of 465978366 is about 21586.5320512583. The cubic root of 465978366 is about 775.2740569435.

The spelling of 465978366 in words is "four hundred sixty-five million, nine hundred seventy-eight thousand, three hundred sixty-six".