4018421187 has 12 divisors (see below), whose sum is σ = 6332057784. Its totient is φ = 2435406720.

The previous prime is 4018421167. The next prime is 4018421191. The reversal of 4018421187 is 7811248104.

4018421187 is a `hidden beast` number, since 40 + 18 + 421 + 187 = 666.

It is not a de Polignac number, because 4018421187 - 2¹⁶ = 4018355651 is a prime.

It is a super-2 number, since 2×4018421187² = 32295417672260977938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4018421107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20294958 + ... + 20295155.

It is an arithmetic number, because the mean of its divisors is an integer number (527671482).

Almost surely, 2^4018421187 is an apocalyptic number.

4018421187 is a deficient number, since it is larger than the sum of its proper divisors (2313636597).

4018421187 is a wasteful number, since it uses less digits than its factorization.

4018421187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40590130 (or 40590127 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 4018421187 is about 63391.0181886993. The cubic root of 4018421187 is about 1589.8341383887.

The spelling of 4018421187 in words is "four billion, eighteen million, four hundred twenty-one thousand, one hundred eighty-seven".