2215104040 has 32 divisors (see below), whose sum is σ = 4992117480. Its totient is φ = 884595712.

The previous prime is 2215104019. The next prime is 2215104053. The reversal of 2215104040 is 404015122.

It can be written as a sum of positive squares in 4 ways, for example, as 1501252516 + 713851524 = 38746^2 + 26718^2 .

It is a super-3 number, since 3×2215104040³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2215103999 and 2215104017.

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, 20197 + ... + 69556.

Almost surely, 2^2215104040 is an apocalyptic number.

2215104040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215104040 is an abundant number, since it is smaller than the sum of its proper divisors (2777013440).

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

2215104040 is a wasteful number, since it uses less digits than its factorization.

2215104040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90381 (or 90377 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2215104040 is about 47064.8917984521. The cubic root of 2215104040 is about 1303.5610529702.

Adding to 2215104040 its reverse (404015122), we get a palindrome (2619119162).

The spelling of 2215104040 in words is "two billion, two hundred fifteen million, one hundred four thousand, forty".