4892451840 has 440 divisors, whose sum is σ = 17976131712. Its totient is φ = 1271808000.

The previous prime is 4892451791. The next prime is 4892451847. The reversal of 4892451840 is 481542984.

4892451840 is a `hidden beast` number, since 4 + 8 + 92 + 4 + 518 + 40 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (4892451847) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 19491715 + ... + 19491965.

Almost surely, 2^4892451840 is an apocalyptic number.

4892451840 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 4892451840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8988065856).

4892451840 is an abundant number, since it is smaller than the sum of its proper divisors (13083679872).

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

4892451840 is a wasteful number, since it uses less digits than its factorization.

4892451840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 4892451840 is about 69946.0637920391. The cubic root of 4892451840 is about 1697.6266581703.

The spelling of 4892451840 in words is "four billion, eight hundred ninety-two million, four hundred fifty-one thousand, eight hundred forty".