4012490520 has 80 divisors (see below), whose sum is σ = 13486437360. Its totient is φ = 1069996608.

The previous prime is 4012490491. The next prime is 4012490579. The reversal of 4012490520 is 250942104.

4012490520 is a `hidden beast` number, since 40 + 12 + 4 + 90 + 520 = 666.

It is a super-2 number, since 2×4012490520² = 32200160346179740800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 615972 + ... + 622451.

It is an arithmetic number, because the mean of its divisors is an integer number (168580467).

Almost surely, 2^4012490520 is an apocalyptic number.

4012490520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4012490520 is an abundant number, since it is smaller than the sum of its proper divisors (9473946840).

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

4012490520 is a wasteful number, since it uses less digits than its factorization.

4012490520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238446 (or 1238433 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 4012490520 is about 63344.2224674042. Note that the first 3 decimals coincide. The cubic root of 4012490520 is about 1589.0516238324.

The spelling of 4012490520 in words is "four billion, twelve million, four hundred ninety thousand, five hundred twenty".