2415255240 has 128 divisors (see below), whose sum is σ = 7353815040. Its totient is φ = 634534656.

The previous prime is 2415255221. The next prime is 2415255287. The reversal of 2415255240 is 425525142.

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

It is a junction number, because it is equal to n+sod(n) for n = 2415255198 and 2415255207.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3250309 + ... + 3251051.

It is an arithmetic number, because the mean of its divisors is an integer number (57451680).

Almost surely, 2^2415255240 is an apocalyptic number.

2415255240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2415255240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3676907520).

2415255240 is an abundant number, since it is smaller than the sum of its proper divisors (4938559800).

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

2415255240 is a wasteful number, since it uses less digits than its factorization.

2415255240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123 (or 1119 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 2415255240 is about 49145.2463621864. The cubic root of 2415255240 is about 1341.6966775604.

The spelling of 2415255240 in words is "two billion, four hundred fifteen million, two hundred fifty-five thousand, two hundred forty".