2018642520 has 64 divisors (see below), whose sum is σ = 6158592000. Its totient is φ = 529179008.

The previous prime is 2018642473. The next prime is 2018642533. The reversal of 2018642520 is 252468102.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135480 + ... + 149639.

It is an arithmetic number, because the mean of its divisors is an integer number (96228000).

Almost surely, 2^2018642520 is an apocalyptic number.

2018642520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2018642520 is an abundant number, since it is smaller than the sum of its proper divisors (4139949480).

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

2018642520 is a wasteful number, since it uses less digits than its factorization.

2018642520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285192 (or 285188 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 2018642520 is about 44929.3058036734. The cubic root of 2018642520 is about 1263.8236331263.

The spelling of 2018642520 in words is "two billion, eighteen million, six hundred forty-two thousand, five hundred twenty".