466378638 has 64 divisors (see below), whose sum is σ = 1060819200. Its totient is φ = 135394560.

The previous prime is 466378637. The next prime is 466378651. The reversal of 466378638 is 836873664.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (466378637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 265170 + ... + 266922.

It is an arithmetic number, because the mean of its divisors is an integer number (16575300).

Almost surely, 2^466378638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 466378638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (530409600).

466378638 is an abundant number, since it is smaller than the sum of its proper divisors (594440562).

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

466378638 is a wasteful number, since it uses less digits than its factorization.

466378638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937.

The product of its digits is 3483648, while the sum is 51.

The square root of 466378638 is about 21595.8013974939. The cubic root of 466378638 is about 775.4959783230.

The spelling of 466378638 in words is "four hundred sixty-six million, three hundred seventy-eight thousand, six hundred thirty-eight".