4891487400 has 192 divisors, whose sum is σ = 17207827200. Its totient is φ = 1276577280.

The previous prime is 4891487351. The next prime is 4891487417. The reversal of 4891487400 is 47841984.

4891487400 is a `hidden beast` number, since 48 + 91 + 487 + 40 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 244164 + ... + 263436.

It is an arithmetic number, because the mean of its divisors is an integer number (89624100).

Almost surely, 2^4891487400 is an apocalyptic number.

4891487400 is a gapful number since it is divisible by the number (40) 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 4891487400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8603913600).

4891487400 is an abundant number, since it is smaller than the sum of its proper divisors (12316339800).

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

4891487400 is a wasteful number, since it uses less digits than its factorization.

4891487400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19345 (or 19330 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 4891487400 is about 69939.1692830277. The cubic root of 4891487400 is about 1697.5151008364.

The spelling of 4891487400 in words is "four billion, eight hundred ninety-one million, four hundred eighty-seven thousand, four hundred".