2415391220 has 24 divisors (see below), whose sum is σ = 5533442208. Its totient is φ = 878324000.

The previous prime is 2415391163. The next prime is 2415391247. The reversal of 2415391220 is 221935142.

It is a super-2 number, since 2×2415391220² = 11668229491306176800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5489306 + ... + 5489745.

It is an arithmetic number, because the mean of its divisors is an integer number (230560092).

Almost surely, 2^2415391220 is an apocalyptic number.

2415391220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2415391220 is an abundant number, since it is smaller than the sum of its proper divisors (3118050988).

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

2415391220 is a wasteful number, since it uses less digits than its factorization.

2415391220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10979071 (or 10979069 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 2415391220 is about 49146.6297928963. The cubic root of 2415391220 is about 1341.7218564715.

The spelling of 2415391220 in words is "two billion, four hundred fifteen million, three hundred ninety-one thousand, two hundred twenty".