2124015540 has 48 divisors (see below), whose sum is σ = 6073788672. Its totient is φ = 554352256.

The previous prime is 2124015539. The next prime is 2124015571. The reversal of 2124015540 is 455104212.

It is a super-2 number, since 2×2124015540² = 9022884028322983200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2124015540.

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, 373779 + ... + 379418.

It is an arithmetic number, because the mean of its divisors is an integer number (126537264).

Almost surely, 2^2124015540 is an apocalyptic number.

2124015540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2124015540 is an abundant number, since it is smaller than the sum of its proper divisors (3949773132).

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

2124015540 is a wasteful number, since it uses less digits than its factorization.

2124015540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753256 (or 753254 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2124015540 is about 46087.0430815430. The cubic root of 2124015540 is about 1285.4422294565.

Adding to 2124015540 its reverse (455104212), we get a palindrome (2579119752).

The spelling of 2124015540 in words is "two billion, one hundred twenty-four million, fifteen thousand, five hundred forty".