63892140 has 72 divisors (see below), whose sum is σ = 193748688. Its totient is φ = 15724800.

The previous prime is 63892139. The next prime is 63892159. The reversal of 63892140 is 4129836.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6990 + ... + 13290.

It is an arithmetic number, because the mean of its divisors is an integer number (2690954).

Almost surely, 2^63892140 is an apocalyptic number.

63892140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63892140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96874344).

63892140 is an abundant number, since it is smaller than the sum of its proper divisors (129856548).

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

63892140 is a wasteful number, since it uses less digits than its factorization.

63892140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6339 (or 6324 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 63892140 is about 7993.2559073259. The cubic root of 63892140 is about 399.7751653138.

The spelling of 63892140 in words is "sixty-three million, eight hundred ninety-two thousand, one hundred forty".