1632823878 has 64 divisors (see below), whose sum is σ = 3860213760. Its totient is φ = 450576000.

The previous prime is 1632823831. The next prime is 1632823883. The reversal of 1632823878 is 8783282361.

It is a super-2 number, since 2×1632823878² = 5332227633133917768, which contains 22 as substring.

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, 911808 + ... + 913596.

It is an arithmetic number, because the mean of its divisors is an integer number (60315840).

Almost surely, 2^1632823878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1632823878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1930106880).

1632823878 is an abundant number, since it is smaller than the sum of its proper divisors (2227389882).

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

1632823878 is a wasteful number, since it uses less digits than its factorization.

1632823878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533.

The product of its digits is 774144, while the sum is 48.

The square root of 1632823878 is about 40408.2154765587. The cubic root of 1632823878 is about 1177.5511499997.

The spelling of 1632823878 in words is "one billion, six hundred thirty-two million, eight hundred twenty-three thousand, eight hundred seventy-eight".