4027155840 has 256 divisors, whose sum is σ = 15102936000. Its totient is φ = 1010663424.

The previous prime is 4027155827. The next prime is 4027155863. The reversal of 4027155840 is 485517204.

4027155840 is a `hidden beast` number, since 4 + 0 + 2 + 71 + 5 + 584 + 0 = 666.

It is a super-2 number, since 2×4027155840² = 32435968319292211200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4027155795 and 4027155804.

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, 286906 + ... + 300614.

Almost surely, 2^4027155840 is an apocalyptic number.

4027155840 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 4027155840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7551468000).

4027155840 is an abundant number, since it is smaller than the sum of its proper divisors (11075780160).

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

4027155840 is a wasteful number, since it uses less digits than its factorization.

4027155840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13754 (or 13736 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 36.

The square root of 4027155840 is about 63459.8758271713. The cubic root of 4027155840 is about 1590.9852206528.

The spelling of 4027155840 in words is "four billion, twenty-seven million, one hundred fifty-five thousand, eight hundred forty".