2415640120 has 32 divisors (see below), whose sum is σ = 5438553120. Its totient is φ = 965658240.

The previous prime is 2415640093. The next prime is 2415640121. The reversal of 2415640120 is 210465142.

It is a happy number.

It is a super-2 number, since 2×2415640120² = 11670634378707228800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2415640121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49885 + ... + 85555.

It is an arithmetic number, because the mean of its divisors is an integer number (169954785).

Almost surely, 2^2415640120 is an apocalyptic number.

2415640120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2415640120 is an abundant number, since it is smaller than the sum of its proper divisors (3022913000).

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

2415640120 is a wasteful number, since it uses less digits than its factorization.

2415640120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37375 (or 37371 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 2415640120 is about 49149.1619460597. The cubic root of 2415640120 is about 1341.7679419112.

The spelling of 2415640120 in words is "two billion, four hundred fifteen million, six hundred forty thousand, one hundred twenty".