4018564840 has 32 divisors (see below), whose sum is σ = 9045146880. Its totient is φ = 1606825792.

The previous prime is 4018564799. The next prime is 4018564843. The reversal of 4018564840 is 484658104.

It is a super-2 number, since 2×4018564840² = 32297726746568451200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 4018564793 and 4018564802.

It is not an unprimeable number, because it can be changed into a prime (4018564843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98817 + ... + 133423.

It is an arithmetic number, because the mean of its divisors is an integer number (282660840).

Almost surely, 2^4018564840 is an apocalyptic number.

4018564840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4018564840 is an abundant number, since it is smaller than the sum of its proper divisors (5026582040).

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

4018564840 is a wasteful number, since it uses less digits than its factorization.

4018564840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37521 (or 37517 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The square root of 4018564840 is about 63392.1512491886. The cubic root of 4018564840 is about 1589.8530829535.

The spelling of 4018564840 in words is "four billion, eighteen million, five hundred sixty-four thousand, eight hundred forty".